We’ve improved our notation editor’s “Add track” feature! When adding a track, you now have the ability to set the following:

• Synth sound (when using our synthetic playback).
• Instrument transposition (e.g., for B flat clarinets).
• Tuning (for tablature). At the moment, you’re limited to our list of common tunings; let us know if we don’t have your favorite tuning.
• Capo location (for tablature).

It looks like this: