Untitled3.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Displaying Sheet Music using Jupyter and music21 in a headless VPS\n",
    "\n",
    "This notebook shows how to display sheet music in a headless vps, where musescore, using **lilypond** \".ly\" instead of **musescore** \"musicxml\" which seems to be dependent on X display to generate sheet music to ipython. This is useful if you are running from a remote browser and also that lilypond seems to print better images than musicxml format by default."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "from music21 import *"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "us = environment.UserSettings()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['musicxmlPath',\n",
       " 'vectorPath',\n",
       " 'warnings',\n",
       " 'musescoreDirectPNGPath',\n",
       " 'localCorporaSettings',\n",
       " 'lilypondVersion',\n",
       " 'midiPath',\n",
       " 'showFormat',\n",
       " 'ipythonShowFormat',\n",
       " 'manualCoreCorpusPath',\n",
       " 'debug',\n",
       " 'lilypondBackend',\n",
       " 'graphicsPath',\n",
       " 'autoDownload',\n",
       " 'lilypondPath',\n",
       " 'braillePath',\n",
       " 'writeFormat',\n",
       " 'localCorpusSettings',\n",
       " 'pdfPath',\n",
       " 'directoryScratch',\n",
       " 'lilypondFormat',\n",
       " 'localCorpusPath']"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "us.keys()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Assuring lilypond is installed and music21 is correctly set up"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "First we execute a shell `whereis lilypond`, which outputs the binary is at '/usr/bin/lilypond'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "b'lilypond: /usr/bin/lilypond /usr/share/lilypond /usr/share/man/man1/lilypond.1.gz /usr/share/info/lilypond\\n'\n"
     ]
    }
   ],
   "source": [
    "import subprocess\n",
    "p = subprocess.Popen(['whereis','lilypond'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)\n",
    "out, err = p.communicate()\n",
    "print(out)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Then we see if the us (environment.UserSettings) we instantiated before has the right value, it is empty by default. Is this is the case, set it like you set any string in python."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'/usr/bin/lilypond'"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "us['lilypondPath']"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Then we set the default display format for ipython/jupyter to `ipython.lily.png`"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "us['ipythonShowFormat'] = 'ipython.lily.png'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {
    "collapsed": false,
    "scrolled": true
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "us['musicxmlPath'] = /usr/bin/musescore\n",
      "us['vectorPath'] = None\n",
      "us['warnings'] = 1\n",
      "us['musescoreDirectPNGPath'] = /usr/bin/musescore\n",
      "us['localCorporaSettings'] = {}\n",
      "us['lilypondVersion'] = None\n",
      "us['midiPath'] = /usr/bin/timidity\n",
      "us['showFormat'] = lily.png\n",
      "us['ipythonShowFormat'] = ipython.lily.png\n",
      "us['manualCoreCorpusPath'] = None\n",
      "us['debug'] = 1\n",
      "us['lilypondBackend'] = ps\n",
      "us['graphicsPath'] = /usr/bin/sxiv\n",
      "us['autoDownload'] = ask\n",
      "us['lilypondPath'] = /usr/bin/lilypond\n",
      "us['braillePath'] = None\n",
      "us['writeFormat'] = lily.png\n",
      "us['localCorpusSettings'] = []\n",
      "us['pdfPath'] = /usr/bin/zathura\n",
      "us['directoryScratch'] = /home/iacchus/git-stuff/jupyter-venv/scratchdir\n",
      "us['lilypondFormat'] = pdf\n"
     ]
    }
   ],
   "source": [
    "for k in us.keys():\n",
    "    try:\n",
    "        print(\"us['{0}'] = {1}\".format(k, us[k]))\n",
    "    except:\n",
    "        pass"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "metadata": {
    "collapsed": false,
    "scrolled": false
   },
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "music21.base.py: Caller first is <music21.stream.Part 0x7fd8827e3860_flat> with offsetAppend 0.0\n",
      "music21.base.py: looking now in derivedObject, <music21.stream.Part 0x7fd8827e3860_flat> with offsetAppend 0.0\n",
      "music21.base.py: Caller first is <music21.stream.Part 0x7fd8827e3860_flat> with offsetAppend 0.0\n",
      "music21.base.py: Yielding (<music21.stream.Part 0x7fd8827e3860_flat>, 0.0, 'flatten') from derivedObject contextSites\n",
      "music21.base.py: --returning from derivedObject search\n",
      "music21.base.py: --returning from derivedObject search\n",
      "lily.translate2012.py: environment.py temporary file: /home/iacchus/git-stuff/jupyter-venv/scratchdir/tmp8tzabq03.ly\n"
     ]
    },
    {
     "data": {
      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAP4AAABJCAIAAACSOwzLAAAJUklEQVR4nO2dQWsTTRjHZ2sCSWNM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\n",
      "text/plain": [
       "<music21.ipython21.objects.IPythonPNGObject at 0x7fd8a80f04a8>"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "littleMelody = converter.parse(\"tinynotation: 3/4 c4 d8 f g16 a g f#\")\n",
    "littleMelody.show()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Useful stuff about avaliable values\n",
    "\n",
    "from music21 source https://github.com/cuthbertLab/music21/blob/master/music21/common/formats.py"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['musicxml',\n",
       " 'lilypond',\n",
       " 'text',\n",
       " 'textline',\n",
       " 'midi',\n",
       " 'png',\n",
       " 'pdf',\n",
       " 'svg',\n",
       " 'lily.pdf',\n",
       " 'lily.png',\n",
       " 'lily.svg',\n",
       " 'braille',\n",
       " 'vexflow',\n",
       " 'vexflow.html',\n",
       " 'vexflow.js',\n",
       " 'ipython',\n",
       " 'ipython.png',\n",
       " 'musicxml.png']"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "common.formats.VALID_SHOW_FORMATS"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['musicxml',\n",
       " 'lilypond',\n",
       " 'text',\n",
       " 'textline',\n",
       " 'midi',\n",
       " 'png',\n",
       " 'pdf',\n",
       " 'svg',\n",
       " 'lily.pdf',\n",
       " 'lily.png',\n",
       " 'lily.svg',\n",
       " 'braille',\n",
       " 'vexflow',\n",
       " 'vexflow.html',\n",
       " 'vexflow.js',\n",
       " 'ipython',\n",
       " 'ipython.png',\n",
       " 'musicxml.png']"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "common.formats.VALID_WRITE_FORMATS"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.5.2"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 0
}

Untitled7.ipynb