Make a call that simply calls the default note call with the given attrs.

Create a generator that has a different implementation for zero and non-zero duration.

Just like the default note call, except apply a function to the output.

Transform an existing call by applying a function to it. It gets a new name and the documentation is prepended to the documentation of the original call.

Create a call that just dispatches to other calls.

The grace note falls either before or after the beat.

A composite patch corresponds to multiple underlying patches.

This is useful for instruments with multiple pitches, e.g. a drum with a keymap for strokes as well as a tuned pitch, or a pitched instrument with a secondary pitch as a resonance.

Assigning a control to a composite actually means the other composite parts will *not* get it. This is because derivers naturally inherit the entire environment, and it seems better to list what it should have, and not exhaustively list all it gets.

So if this is empty it gets all controls, and if it's not, it still gets the named controls but other composites don't.

See Composite.

Move an environ val from one key to another. This is meant to be put in inst_postproc, because doing it in the note call may be too early.