[JBlyth]

Hello Mike,

Thank you for your extensive reply.

1) The problem with MIDI files is that there is no MIDI sequencer available for UWP store apps. On Android, I can just ask the audio engine to play back the MIDI file and it will use its own MIDI sequencer to play back the file. On Windows, there is nothing like that available, so in order to support MIDI files, I would have to implement my own sequencer and send that through the Microsoft GS Wavetable Synth (assuming I can actually get that to work). There are also aren't any UWP libraries to help with this, so I'm going to have to find a library for a different language or platform and try to convert the code.
I see that the Android version will play .wav and .mp3 files. I will experiment more with .wav/.mp3 so Android and Win 10 are cross-compatible. However, they sound VERY different to the midi files.....

2) Yes, that is by design, otherwise the scrolling state can get really messed up by the sudden change of position. Having said that, I can try to work on having the scrolling stop when the link point is tapped, then resume after the destination page is rendered (if necessary) and displayed.
In my brief testing, jumping to a link BEFORE the scrolling reaches the end of the song works fine, and the scrolling continues after the jump. It is only when the end of the song is reached before clicking the Link that the scrolling fails to start again.

3) I'm afraid I can't offer any feedback on either of those as I've never used them.
Feedback from http://www.psrtutorial.com/forum/index.p...741.0.html suggests the devices will work. I'll buy one and get back to you.

5) As far as I know, sending a MIDI file is not supported by the MIDI spec.  There are a number of things that can be found in MIDI files that can't be sent through MIDI messages. Having said that, I can probably send any of the supported MIDI commands that are found in the file, but the problem once again becomes sequencing. You need code that processes all of the MIDI messages in the file at the correct times. I will have to see if the Android library I'm currently using can correctly process a MIDI file and handling the sequencing/sending. I know that the Windows 10 Microsoft MIDI library does not support this at all. So it's going to be a lot of work to support streaming a MIDI file to a connected device.
I phrased my query poorly. What I was thinking of was for MobileSheets Pro to be able to "play" a midi file on my keyboard via the midi/usb cable. This would negate the need for a midi player within MobileSheets Pro in this instance. I did find "Midi Keyboard" in the Microsoft Store, which does play midi to my Tyros 4. However, it does it extremely badly and the timing is all over the place!

Many thanks for the great support, Mike