audio

I feel that the comments in the examples for these functions could be improved a little.
Eg - the first example for midi_note_on says:

midi_note_on :e3 # Sends MIDI note on :e3 with the default velocity of 12 to all ports and channels

I think it is slightly clearer for the comment to say:

# Sends MIDI note on for note :e3 with the default velocity of 12 to all ports and channels
``

Summa

Describe the bug
The "Spectral Multi-Tool" may return an incorrect error message

To Reproduce
Steps to reproduce the behavior:

1. Make a spectral selection from less than 10 Hz (but more than 0 Hz), up to the top of the spectral display.
2. Apply "Spectral Multi-Tool"
3. Note that when the lower frequency is set and the upper frequency is not set, the "Spectral Multi-Tool" acts as

Guidelines

• I have read the guidelines.

Version/Commit hash

trunk

Describe the bug.

Look at the screenshot in #618:

I’ve highlighted the areas that use a font other than SF UI.

Expected behavior

The whole interface

When closing the mumble window, an option to remember our choice for the future would be nice (or we can put it in prefs -- or is it already in prefs?)

Motivation

When installing SuperCollider from fresh, it will by deffault recording the server output in the .aiff format unless changed ala s.recHeaderFormat_("wav") in a startup file.

AIFF is a more MacOS centric format and it just doesn't work as well on Linux for example when converting files, importing/exporting from other prog

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For classes declared with struct, forward declarations should also use struct. Currently, only struct Message violates this in a few header files (2 or so?).