Now let’s move onto the left-side riff. Again, I’m using Oddity with the same preset as a starting point, this time with an equal blend of OSC1 and 2. OSC1 is set to saw and OSC2 to pulse.PWM width is set to 28% and PWM Mod depth to full, which is modulated by the LFO set to 0.589Hz. This gives some nice movement to the riff, stopping it from being boring.
The pattern of notes is CCCCC, A-flat x3, GG, B-flat x2. Once you’re happy that this riff is sounding good, level it against the right-hand riff so that the levels complement each other nicely and so that it sounds like one complete riff rather than two distinct parts. Set the low pass filter frequency to 53.4Hz, resonance to 0 and then add the HPF output on the mixer set to 88% and the HPF frequency set to 114Hz.
Add some high boost (+4.5dB@3250Hz) on Logic’s Eq and roll out some lows from 65Hz downwards to get rid of any low mud. Set Attack to fast, Decay to medium, Sustain to full, Release to almost full and pan hard left.