10.6

Table Of Contents
148Logic Pro Instruments
11. Close the edit window, and experiment with the Fundamental, Octaves, Odd/Even, and
Fifths knobs in the additive effects section. Also adjust the PVar and Sym knobs to hear
their impact.
12. Choose Stretch from the second additive effects pop-up menu, and experiment with the
Stretch and String knobs.
13. As further steps, you may also want to Control-click different Additive controls to assign
modulation routings. Try assigning a modulation sequencer to the String parameter in
the additive effects section to create a stepped sample-and-hold type of sound. You
can use a File menu preset for the sequencer or create your own sequence.
If you want to take the modulation sequence concept further, you could create a
sequence of individual harmonic pitches, resulting in a melody. Similarly, you could
sweep a comb filter across the harmonic series, again resulting in a melody.
Explore VA synthesis in Alchemy
1. In Logic Pro, from the Name bar, click the File button and choose Initialize Preset from
the pop-up menu to reset all Alchemy parameters to default settings.
2. Click the A button (below Global) to view source A parameters.
This defaults to the VA (Virtual Analog) synthesis engine. Play a few notes to hear the
sound.
3. Choose several waveforms from each category in the source select field, and play the
keyboard each time to hear the sound.
Alchemy has dozens of waveforms to choose from, providing a wealth of raw source
material. Once you’ve explored the options, choose Complex > Soft Edge. This
resembles a cheap electronic keyboard piano sound.
4. Turn on filter 1 in the source parameters at the left, and double-click the Cutoff knob.
Play to hear a much mellower, more electric piano-like sound. Feel free to try different
filters, but LP 12dB Smooth is a good option.