Game Boy instrument editor consists of three tabs: one controlling envelope of sound channels, another for the wave synth and macro tab containing several macros.
- **Hardware Sequence**: this allows you to define a sequence of hardware envelope changes for creating complex envelopes. see the next section for more information.
### hardware sequence
Furnace provides a sequencer for the hardware envelope. this way you can define timed envelope changes which may be used for simulating ADSR, adding simple release, and other things.
the sequence consists of a list of "commands".
the `+` button adds a new command, which may be one of the following:
- **Envelope**: sets envelope values and retriggers note. it is highly recommended to have this as the first command.
- **Sweep**: sets sweep parameters. only works on the first channel.
- **Wait**: waits a specific number of ticks.
- **Wait for Release**: waits until the note is released with `===` or `REL`.
- **Loop**: goes to a previous position in the sequence.
- **Loop until Release**: same as Loop, but doesn't have effect after releasing the note.
each command in the sequence is represented in three columns:
- **Tick**: the tick this command will execute, followed by position in the sequence.
- **Command**: the command and its parameters.
- **Move/Remove**: allows you to move the command, or remove it.
## Wavetable
this allows you to enable and configure the Furnace wavetable synthesizer. see [this page](wavesynth.md) for more information.
notes:
- only for Wave channel.
- on Game Boy, using the wave synth may result in clicking and/or phase resets. by default Furnace attempts to mitigate this problem though, but some clicking may still be audible.
