Devices

The Devices view is the studio’s Ableton-style device strip: for each track, the instrument followed by its effect chain, each device showing its parameters. It is a projection of the fx.* data and synth params in your song file — and it writes those params back.

What it projects

• Per track: an instrument box (the synth id or sampler / midi kind, with its params) followed by one box per effect in the static chain, in order, each showing its effectId and parameter values.
• The master row: the master-bus effect chain (song.setMasterEffects(...)), rendered last. A muted (default) tag marks the implicit tuned chain when a song hasn’t declared one.

How it writes back

Effect params whose value is a plain literal in main.ts are editable, and commit straight into the source:

• Numbers: drag to scrub (0.01 steps; shift for coarse), or double-click to type.
• Enums: a select — e.g. a filter’s type (lowpass / highpass / bandpass), or a sidechain’s source (the other track names).

Computed values — anything that isn’t a plain literal (a spread, a value defined in another file, an expression) — render locked, with a hover lock icon and a reason: “edit it in code.” The panel stays calm and read-only-looking until you hover, then reveals the affordance.

The master chain is read-only by design

The master row never offers write-back. The master chain is code-owned through song.setMasterEffects([...]), and the projection here is read-only on purpose — so the one place that shapes the whole mix is always edited deliberately, in code. Track instrument params are likewise shown read-only (the instrument box carries no edit context); effect params are the write-back surface.