Checklist

• I'm requesting exactly 1 feature with this issue.
• This feature hasn't already been requested.
• This feature hasn't already been implemented in the latest development build.

Requested Feature

Export track to FLAC file format, in addition to WAV/VGM/S98.

FLAC is a common audio exchange and archival format. It is lossless and well supported by audio players, with open source codecs available. Compared to WAV, the file size is much smaller, and compared to VGM/S98, it can be played back and shared in many more places.