Comment 3 for bug 70358

Here is a use case.

I import three audio files at the same time. They are all put right one after another in the same "instrument". I instead want it to be three separate "audio tracks" ("audio file instruments"?) to allow some cool mixing.

The only way to do that currently is to create two audio instruments, cut and paste the files from one instrument to another. Not intuitive, and it defeats the instrument model *any way*, so might as well just allow dragging from an instrument to another.