Alchemy controls in Logic Pro for iPad

Alchemy provides eight knobs, two XY pads, and a set of ADSR envelope knobs for a total of sixteen controls. These are automatically assigned to modulate different parameters when you load a preset or patch.

Also available is the Transform pad that morphs between snapshots of performance control settings. All performance controls are available as automation targets in Logic Pro.

In addition, each preset or patch will respond in different ways to MIDI modulation wheel data, and note velocity or aftertouch.

Performance controls

Performance controls are a custom set of controls that modify the values of key sound parameters.

As you explore the included sound library, you may notice that many presets have a similar performance control layout.

Transform pad: Drag the framing box to different positions to morph between performance snapshots in real time. You can also tap on any snapshot box to choose it.
The performance control knobs update, modulating the associated parameters.
Control knobs: Provide quick access to a sound’s main characteristics.
- Knobs 1 and 5: Often used for Delay (1) and Reverb (5) level. If other effects are used, other effect parameters can be substituted here.
- Knobs 2 and 6: Often used for filter cutoff and resonance.
- Knobs 3 and 7: Often used to control rhythm or movement in a preset with LFO or arpeggiator parameter assignments.
- Knobs 4 and 8: Often used for timbre, pitch, or other sound source parameters.
XY pad 1: Generally used for morphing among (up to four) sources. Drag the gray control point to modulate two parameters simultaneously.
XY pad 2: Can be used for control over additional morphing or effects parameters or for features unique to a particular preset. Drag the gray control point to modulate two parameters simultaneously.
Envelope knobs: Normally control the amplitude in most presets, but may also affect other sound engine parameters.
- Attack knob: Set the attack time for AHDSR1, or adjust the value of assigned parameter or parameters.
- Decay knob: Set the decay time for AHDSR1, or adjust the value of assigned parameter or parameters.
- Sustain knob: Set the sustain level for AHDSR1, or adjust the value of assigned parameter or parameters.
- Release knob: Set the release time for AHDSR1, or adjust the value of assigned parameter or parameters.

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Logic Pro User Guide for iPad

Alchemy controls in Logic Pro for iPad

Performance controls