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Using AVMIDIPlayer from a MIDI file, and from a MusicSequence.

Neither SoundFonts nor DLS files will play in the simulator. They play on the device though.

Playing the "data" option takes a long time for the night on bald mountain file to be parsed.

It seems that tempo events cause the player to hiccup on the device.

Download your own SoundFont. You can get some here:

MuseCore

You have to play it on a device to hear the sounds. Otherwise, in the simultor you will get just sine waves.

Blog post

Some goofiness when you move the slider. I want it to change when the slider is done. I specified that in the storyboard. But, it still gets called while sliding.

Using MusicTrack in Swift is still a pain. I have idea what to do about MIDIMetaEvent - especially the data field. I think they imported it into Swift incorrectly. So, I don't have any meta events.

If you find one, please add it to issues

MIT

Please read the LICENSE for details.

• Gene De Lisa's development blog
• Gene De Lisa's music blog
• Twitter: @GeneDeLisaDev