HelloWorld017 · August 18, 2025 16:36 · HelloWorld017 · Aug 18, 2025
diff --git a/drumsterr.html b/drumsterr.html
 <!DOCTYPE html>
 <html>
 	<head>
 		<title>Drumsterr</title>
 		<link href="https://fonts.googleapis.com/css2?family=Inter:opsz,[email protected],100..900&display=swap" rel="stylesheet">
 		<style>
 			*:where(:not(html, iframe, canvas, img, svg, video, audio):not(svg *, symbol *)) {
 				all: unset;
 				display: revert;
 			}

 			*, *::before, *::after {
 				box-sizing: border-box;
 			}

 			:root {
 				font-size: 12px;
 			}

 			a, button {
 				cursor: revert;
 			}

 			img {
 				max-inline-size: 100%;
 				max-block-size: 100%;
 			}
 		</style>
 		<style>
 			:root {
 				background: #202020;
 			}
 			
 			#app {
 				display: flex;
 				flex-direction: column;
 				justify-content: center;
 				
 				width: 100%;
 				height: 100svh;
 				max-width: 70rem;
 				margin: 0 auto;
 				
 				color: #ffffff;
 				padding: 4rem;
 				font-family: Inter, system-ui, sans-serif;
 				letter-spacing: -0.01em;
 			}
 		

 			h1 {
 				font-size: 2.4rem;
 				font-weight: 700;
 				margin-bottom: 1.6rem;
 				letter-spacing: -0.02em;
 			}

 			h3 {
 				font-size: 2rem;
 				font-weight: 700;
 				margin-bottom: 1.6rem;
 				letter-spacing: -0.02em;
 			}
 			
 			section {
 				margin-bottom: 3.6rem;
 			}
 			
 			blockquote {
 				border-left: 3px solid #707070;
 				padding-left: 2rem;
 				
 				& p {
 					font-size: 1.5rem;
 					line-height: 2rem;
 				}
 			}
 			
 			p {
 				color: #707070;
 				font-size: 1.4rem;
 				line-height: 1.8rem;
 			}
 			
 			ol {
 				margin-left: 2rem;
 				list-style-type: decimal;
 			}
 			
 			li {
 				font-size: 1.4rem;
 				line-height: 1.8rem;
 				margin: 0.4rem 0;
 			}
 			
 			code {
 				background: #20243a;
 				color: #0080ff;
 				padding: 0.4rem 0.8rem;
 				border-radius: 0.8rem;
 			}

 			.Dropzone {
 				border: 1px solid #404040;
 				border-radius: 1.5rem;
 				padding: 6rem 3rem;
 				text-align: center;
 				transition: all .4s ease;
 				
 				& i {
 					display: inline-flex;
 					font-size: 2.4rem;
 					padding: 1rem;
 					margin-bottom: 3rem;
 					border: 1px solid #404040;
 					border-radius: 1rem;
 				}
 			}
 			
 			.Dropzone--active {
 				border-color: #0080ff;
 				background: #292929;
 			}
 		</style>
 	</head>
 	<body>
 		<div id="app">
 			<h1>Drumsterr</h1>
 			<section>
 				<blockquote>
 					<p>Convert your Songsterr GuitarPro (*.gp) files suitable for Musescore Editing.</p>
 				</blockquote>
 			</section>
 			
 			<h3>Instructions</h3>
 			<section>
 				<ol>
 					<li>Export your score in Songsterr</li>
 					<li>Drag it to this page</li>
 					<li>Download converted file and open it in Musescore</li>
 					<li>Go to layout tab in your sidebar, click the config icon, and click <code>Replace instrument</code></li>
 					<li>Find <code>Drum kit (common)</code>.</li>
 					<li>
 						To remove accidentals (which are shown by the Musescore bug), follow these steps.
 						<ol>
 							<li>click an accidental, click <code>Select > Similar</code></li>
 							<li>Go to properties tab in your sidebar, uncheck the <code>visible</code> checkbox.</li>
 						</ol>
 					</li>
 				</ol>
 			</section>
 			
 			<h3>Converter</h3>
 			<div id="input"></div>
 		</div>
 		
 		<script type="module">
 			import { createRoot } from 'https://esm.sh/[email protected]/client';
 			import { html } from 'https://esm.sh/[email protected]/react';
 			import { useCallback } from 'https://esm.sh/[email protected]';
 			import { useDropzone } from 'https://esm.sh/[email protected][email protected]';
 			
 			import JSZip from 'https://esm.sh/[email protected]';
 			import { XMLParser, XMLBuilder } from 'https://esm.sh/[email protected]';
 			
 			// TODO add elements remapping
 			const DRUM_LOOKUP = {
 				Bass: 36,
 				Snare: 38,
 				SnareRim: 37,
 				Cowbell: 56,
 				CymbalsCrash1: 49,
 				CymbalsCrash2: 57,
 				CymbalsRide1: 51,
 				CymbalsRide2: 59,
 				CymbalsRideCup: 53,
 				CymbalsSplash: 55,
 				HiHatClosed: 42,
 				HiHatOpened: 46,
 				HiHatPedal: 44,
 				TomsLow: 45,
 				TomsMidLow: 47,
 				TomsMid: 48,
 				TomsHigh: 50,
 				TomsFloor: 43,
 				TomsFloorLow: 41,
 			};
 			
 			const opts = {
 				attributeNamePrefix: '',
 				ignoreAttributes: false,
 				preserveOrder: true
 			};
 			
 			const parser = new XMLParser(opts);
 			const builder = new XMLBuilder(opts);
 			
 			const alterNode = (target, tagName, originalNode, transformedNode) => {
 				const index = target?.findIndex(item => Object.hasOwn(item, tagName) && item[tagName] === originalNode);
 				return target?.toSpliced(index, index < 0 ? 0 : 1, { [tagName]: transformedNode });
 			};

 			const findByTagName = (target, tagName) =>
 				target?.find(item => Object.hasOwn(item, tagName))?.[tagName];
 			
 			const findByAttribute = (target, tagName, [attrName, attrValue]) =>
 				target?.find(item => Object.hasOwn(item, tagName) && item[':@']?.[attrName] === attrValue)?.[tagName];
 			
 			const isDrumNote = properties => {
 				const pitch = findByTagName(findByAttribute(properties, 'Property', ['name', 'ConcertPitch']), 'Pitch');
 				const step = findByTagName(findByTagName(pitch, 'Step'), '#text');
 				const octave = findByTagName(findByTagName(pitch, 'Octave'), '#text');
 				return step === 'C' && octave === -1;
 			};
 			
 			const addMIDIProperty = properties => {
 				const midiProperty = findByAttribute(properties, 'Property', ['name', 'Midi']);
 				if (midiProperty) return properties;
 				
 				const fretProperty = findByAttribute(properties, 'Property', ['name', 'Fret']);
 				const fret = findByTagName(findByTagName(fretProperty, 'Fret'), '#text');
 				return [
 					...properties,
 					{
 						':@': { name: 'Midi' },
 						Property: [
 							{ Number: [{ '#text': fret }] }
 						]
 					}
 				];
 			};
 			
 			const transform = root => {
 				const gpif = findByTagName(root, 'GPIF');
 				const notes = findByTagName(gpif, 'Notes');
 				const notesTransformed = notes.map(note => {
 					if (!Object.hasOwn(note, 'Note')) return note;
 					const properties = findByTagName(note.Note, 'Properties');
 					
 					if (!isDrumNote(properties)) return note;
 					const propertiesTransformed = addMIDIProperty(properties);
 					const noteTransformed = alterNode(note.Note, 'Properties', properties, propertiesTransformed);
 					
 					return { ...note, Note: noteTransformed };
 				});
 				
 				const gpifTransformed = alterNode(gpif, 'Notes', notes, notesTransformed);
 				const rootTransformed = alterNode(root, 'GPIF', gpif, gpifTransformed);
 				return rootTransformed;
 			};
 			
 			
 			const download = (url, name) => {
 				const a = document.createElement('a');
 				a.href = url;
 				a.download = name;
 				a.click();
 			};
 				
 			const Input = () => {
 				const onDrop = useCallback(async ([file]) => {
 					const zip = await JSZip.loadAsync(file);
 					const content = await zip.file('Content/score.gpif').async('string');
 					const contentObject = parser.parse(content);
 					const outputBlob = await zip.file('Content/score.gpif', builder.build(transform(contentObject)))
 						.generateAsync({ type: 'blob' });
 					
 					download(URL.createObjectURL(outputBlob), file.name.replace(/\.gp$/, '-drumsterr.gp'));
 				}, []);
 				
 				const { getRootProps, getInputProps, isDragActive } = useDropzone({ onDrop });
 				
 				return html`
 					<div ...${getRootProps()} class="${`Dropzone${ isDragActive ? ' Dropzone--active' : ''}`}">
 						<input ...${getInputProps()} />
 						<i>
 							<svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 								<path d="m2 2 8 8"/>
 								<path d="m22 2-8 8"/>
 								<ellipse cx="12" cy="9" rx="10" ry="5"/>
 								<path d="M7 13.4v7.9"/>
 								<path d="M12 14v8"/>
 								<path d="M17 13.4v7.9"/>
 								<path d="M2 9v8a10 5 0 0 0 20 0V9"/>
 							</svg>
 						</i>
 						<h3>Click or Drag & Drop</h3>
 						<p>
 							Drop a Songsterr GuitarPro file here.<br />
 							The file will not be uploaded and processed in your device.
 						</p>
 					</div>
 				`;
 			};
 			
 			createRoot(document.querySelector('#input')).render(html`<${Input} />`);
 		</script>
 	</body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Drumsterr</title>
	<link href="https://fonts.googleapis.com/css2?family=Inter:opsz,[email protected],100..900&display=swap" rel="stylesheet">
	<style>
	:where(:not(html, iframe, canvas, img, svg, video, audio):not(svg , symbol *)) {
	all: unset;
	display: revert;
	}

	, ::before, *::after {
	box-sizing: border-box;
	}

	:root {
	font-size: 12px;
	}

	a, button {
	cursor: revert;
	}

	img {
	max-inline-size: 100%;
	max-block-size: 100%;
	}
	</style>
	<style>
	:root {
	background: #202020;
	}

	#app {
	display: flex;
	flex-direction: column;
	justify-content: center;

	width: 100%;
	height: 100svh;
	max-width: 70rem;
	margin: 0 auto;

	color: #ffffff;
	padding: 4rem;
	font-family: Inter, system-ui, sans-serif;
	letter-spacing: -0.01em;
	}


	h1 {
	font-size: 2.4rem;
	font-weight: 700;
	margin-bottom: 1.6rem;
	letter-spacing: -0.02em;
	}

	h3 {
	font-size: 2rem;
	font-weight: 700;
	margin-bottom: 1.6rem;
	letter-spacing: -0.02em;
	}

	section {
	margin-bottom: 3.6rem;
	}

	blockquote {
	border-left: 3px solid #707070;
	padding-left: 2rem;

	& p {
	font-size: 1.5rem;
	line-height: 2rem;
	}
	}

	p {
	color: #707070;
	font-size: 1.4rem;
	line-height: 1.8rem;
	}

	ol {
	margin-left: 2rem;
	list-style-type: decimal;
	}

	li {
	font-size: 1.4rem;
	line-height: 1.8rem;
	margin: 0.4rem 0;
	}

	code {
	background: #20243a;
	color: #0080ff;
	padding: 0.4rem 0.8rem;
	border-radius: 0.8rem;
	}

	.Dropzone {
	border: 1px solid #404040;
	border-radius: 1.5rem;
	padding: 6rem 3rem;
	text-align: center;
	transition: all .4s ease;

	& i {
	display: inline-flex;
	font-size: 2.4rem;
	padding: 1rem;
	margin-bottom: 3rem;
	border: 1px solid #404040;
	border-radius: 1rem;
	}
	}

	.Dropzone--active {
	border-color: #0080ff;
	background: #292929;
	}
	</style>
	</head>
	<body>
	<div id="app">
	<h1>Drumsterr</h1>
	<section>
	<blockquote>
	<p>Convert your Songsterr GuitarPro (*.gp) files suitable for Musescore Editing.</p>
	</blockquote>
	</section>

	<h3>Instructions</h3>
	<section>
	<ol>
	<li>Export your score in Songsterr</li>
	<li>Drag it to this page</li>
	<li>Download converted file and open it in Musescore</li>
	<li>Go to layout tab in your sidebar, click the config icon, and click <code>Replace instrument</code></li>
	<li>Find <code>Drum kit (common)</code>.</li>
	<li>
	To remove accidentals (which are shown by the Musescore bug), follow these steps.
	<ol>
	<li>click an accidental, click <code>Select > Similar</code></li>
	<li>Go to properties tab in your sidebar, uncheck the <code>visible</code> checkbox.</li>
	</ol>
	</li>
	</ol>
	</section>

	<h3>Converter</h3>
	<div id="input"></div>
	</div>

	<script type="module">
	import { createRoot } from 'https://esm.sh/[email protected]/client';
	import { html } from 'https://esm.sh/[email protected]/react';
	import { useCallback } from 'https://esm.sh/[email protected]';
	import { useDropzone } from 'https://esm.sh/[email protected][email protected]';

	import JSZip from 'https://esm.sh/[email protected]';
	import { XMLParser, XMLBuilder } from 'https://esm.sh/[email protected]';

	// TODO add elements remapping
	const DRUM_LOOKUP = {
	Bass: 36,
	Snare: 38,
	SnareRim: 37,
	Cowbell: 56,
	CymbalsCrash1: 49,
	CymbalsCrash2: 57,
	CymbalsRide1: 51,
	CymbalsRide2: 59,
	CymbalsRideCup: 53,
	CymbalsSplash: 55,
	HiHatClosed: 42,
	HiHatOpened: 46,
	HiHatPedal: 44,
	TomsLow: 45,
	TomsMidLow: 47,
	TomsMid: 48,
	TomsHigh: 50,
	TomsFloor: 43,
	TomsFloorLow: 41,
	};

	const opts = {
	attributeNamePrefix: '',
	ignoreAttributes: false,
	preserveOrder: true
	};

	const parser = new XMLParser(opts);
	const builder = new XMLBuilder(opts);

	const alterNode = (target, tagName, originalNode, transformedNode) => {
	const index = target?.findIndex(item => Object.hasOwn(item, tagName) && item[tagName] === originalNode);
	return target?.toSpliced(index, index < 0 ? 0 : 1, { [tagName]: transformedNode });
	};

	const findByTagName = (target, tagName) =>
	target?.find(item => Object.hasOwn(item, tagName))?.[tagName];

	const findByAttribute = (target, tagName, [attrName, attrValue]) =>
	target?.find(item => Object.hasOwn(item, tagName) && item[':@']?.[attrName] === attrValue)?.[tagName];

	const isDrumNote = properties => {
	const pitch = findByTagName(findByAttribute(properties, 'Property', ['name', 'ConcertPitch']), 'Pitch');
	const step = findByTagName(findByTagName(pitch, 'Step'), '#text');
	const octave = findByTagName(findByTagName(pitch, 'Octave'), '#text');
	return step === 'C' && octave === -1;
	};

	const addMIDIProperty = properties => {
	const midiProperty = findByAttribute(properties, 'Property', ['name', 'Midi']);
	if (midiProperty) return properties;

	const fretProperty = findByAttribute(properties, 'Property', ['name', 'Fret']);
	const fret = findByTagName(findByTagName(fretProperty, 'Fret'), '#text');
	return [
	...properties,
	{
	':@': { name: 'Midi' },
	Property: [
	{ Number: [{ '#text': fret }] }
	]
	}
	];
	};

	const transform = root => {
	const gpif = findByTagName(root, 'GPIF');
	const notes = findByTagName(gpif, 'Notes');
	const notesTransformed = notes.map(note => {
	if (!Object.hasOwn(note, 'Note')) return note;
	const properties = findByTagName(note.Note, 'Properties');

	if (!isDrumNote(properties)) return note;
	const propertiesTransformed = addMIDIProperty(properties);
	const noteTransformed = alterNode(note.Note, 'Properties', properties, propertiesTransformed);

	return { ...note, Note: noteTransformed };
	});

	const gpifTransformed = alterNode(gpif, 'Notes', notes, notesTransformed);
	const rootTransformed = alterNode(root, 'GPIF', gpif, gpifTransformed);
	return rootTransformed;
	};


	const download = (url, name) => {
	const a = document.createElement('a');
	a.href = url;
	a.download = name;
	a.click();
	};

	const Input = () => {
	const onDrop = useCallback(async ([file]) => {
	const zip = await JSZip.loadAsync(file);
	const content = await zip.file('Content/score.gpif').async('string');
	const contentObject = parser.parse(content);
	const outputBlob = await zip.file('Content/score.gpif', builder.build(transform(contentObject)))
	.generateAsync({ type: 'blob' });

	download(URL.createObjectURL(outputBlob), file.name.replace(/\.gp$/, '-drumsterr.gp'));
	}, []);

	const { getRootProps, getInputProps, isDragActive } = useDropzone({ onDrop });

	return html`
	<div ...${getRootProps()} class="${`Dropzone${ isDragActive ? ' Dropzone--active' : ''}`}">
	<input ...${getInputProps()} />
	<i>
	<svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
	<path d="m2 2 8 8"/>
	<path d="m22 2-8 8"/>
	<ellipse cx="12" cy="9" rx="10" ry="5"/>
	<path d="M7 13.4v7.9"/>
	<path d="M12 14v8"/>
	<path d="M17 13.4v7.9"/>
	<path d="M2 9v8a10 5 0 0 0 20 0V9"/>
	</svg>
	</i>
	<h3>Click or Drag & Drop</h3>
	<p>
	Drop a Songsterr GuitarPro file here.<br />
	The file will not be uploaded and processed in your device.
	</p>
	</div>
	`;
	};

	createRoot(document.querySelector('#input')).render(html`<${Input} />`);
	</script>
	</body>
	</html>
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