rs... micro? idk, but it doesn't show up as anything known. .rs in json

connect.rsm

{
	"meta": {
		"title": "Connect",
		"artist": "ClariS",
		"genre": "J-Pop",
		"version": 1,
		"-sm-banner": "banner.png",
		"-sm-background": "background.png"
	},
	"timing": {
		"bpm": [ 0, 150 ],
		"speed": [ 0, -1, 2.0 ],
		"timesig": [ 0, 4, 4 ]
	},
	"charts": [
		{
			// yes, you can have more than one hard chart.
			"difficulty": "hard",
			"mode": "dance",
			"style": "single",
			"author": "shakesoda",
			"meter": 12,
			"meterscale": [ 1, 15 ],
			"events": [
				{ "type": "bpm", "params": [ 4000, 160 ] },
				{ "type": "warp", "params": [ 6000, 1000 ] },
			],
			"notedata": [
				[ 1000, "1...", 4 ],
				[ 2000, "..1.", 4 ],
				[ 3000, "11..", 4 ],
				[ 4000, "..11", 4 ],
				[ 5000, "1..1", 4 ],
				[ 6000, ".11.", 4 ],
				[ 7000, "...1", 4 ],
				[ 8000, ".1..", 4 ],
				[ 9000, "..1.", 4 ]
			]
		}
	]
}