Hi all, so we just got a SX-900 recently and while we've figured out the basics there are a couple things we're still hung up on:
1. One type of project we want to do is take an existing audio file, in .mp3 or .wav format, and record new MIDI Multi-Track instrumentation over it. We're working on projects that combine live instrumentation with tracks from the synthesizer, and its far easier to record the live instrument first. The best way we've figured out to do this is to essentially "play" the file into an internal Audio object via the Aux port (or directly from the instrument via the Guitar port), stash that Audio object in the Multi Bank, create a new MIDI Multitrack with one track set to the Multi Bank audio so we can synchronize everything (even though the Audio doesn't embed into the MIDI) and then once we've recorded our MIDI tracks export those into a second Audio object that we transfer to a computer and combine with the original track in Audacity. Is there an easier way to do this?

2. In our '89 Yamaha SY77 its fairly easy to record a few measures, loop them a specific number of times, record a few more measures loop them a specific number of times etc, and build out a series of changing chord progressions on one MIDI track, essentially using the step recording. This is proving surprisingly tricky to do on the SX-900:
a. If we try to use the chord looper, there doesn't seem to be any way to use the looper without some "Style" playing as well. We don't want the Style to play. We just want to record some chords into a loop segment we can play back later. How do you disable the Style stuff entirely?
b. If we try and record the measures we want in a MIDI Multi-Track track there's no easy way to copy and paste them some number of times. If I do try to multi-select and copy/paste the notes in the step editor, I can't figure out how to add a gap at the end of the first instance before the pasted second instance begins; the last note from the first group and the first note from the second play simultaneously. If I adjust the first note in the second set manually, the ones below it don't update to maintain the spacing, so then their timing isn't right.

Is there an easier way to just like...record two measures, copy them ten times, and then record two different measures and copy them ten more times after that?

Thanks for any help!