This acid bassline features a raw sawtooth oscillator producing a classic 303 tone at 124 BPM over 7.74 seconds. It plays a 16th-note pattern with portamento slides achieved by frequency interpolation between MIDI notes spanning roughly from 31 to 48. A 24dB/oct low-pass filter with a decay envelope modulates the cutoff between about 300 Hz and up to 2800 Hz on accented notes, increasing resonance and envelope depth for dynamic character. The filtered signal is heavily saturated using a tanh function for growl and harmonic richness, then normalized and converted to stereo with subtle fade-ins and fade-outs.
This bassline suits acid house, techno, and other electronic genres around 124 BPM. It works well layered under drums or synth leads, providing a rhythmic and melodic groove with expressive slides and filter movement. In a mix, watch for bass frequencies to avoid masking kicks, and consider parallel compression or additional saturation to enhance its punch and presence.