[Zubersoft]

Playing back MIDI files on Android is only possible because Google decided to support that as part of their base audio framework. Microsoft and Apple do not support that, which is why it's not currently supported. It isn't even supported across all Android devices - some can't play back MIDI files as audio. As far as what it will take to support this across all three platforms on all devices - I will have to implement my own MIDI sequencer and synthesizer so I can parse out the MIDI notes, figure out when to play them back, generate audio notes through the synthesizer at the right times, and integrate this all with the audio player so that progress can be provided and users can control the playback position. This is not a small undertaking. It would be much faster if there was an existing open source framework I could use on all three platforms for this, but if this exists, I'm not aware of it. So it will just have to wait until I have the bandwidth to focus on this.

As far as the "GM Microsoft Wavetable Synth" - yes, that could be used a synthesizer to save me some time, but that is only available on Windows, and I'd still have to develop a sequencer to generate the notes through that synthesizer at the right times. I'd rather have a solution that is the same on all three platforms.

Mike