When Music Agent can help
Use Music Agent when you know the musical context but want ideas for a missing part: a bass foundation under your chords, piano or guitar accompaniment, a drum groove, or a pad behind a melody. You direct the style and feel, compare alternatives, and choose what belongs in the piece.
Stem Mode generates new, short instrument parts. It does not separate instruments from an existing mixed recording. This workflow uses your chord progression, key, time signature, tempo, and prompt; you audition the result against your existing arrangement in your DAW. Several stems are generated independently, so matching their settings is a starting point, and listening to them together is part of the process.
Start with your tempo and chords
Choose a section and the missing parts
Work on one short section at a time. Choose Loop for a repeating idea or Passage for a section with an ending or key change, then set its length from 1–8 bars. Select only the instrument parts you need and start with one or two takes per stem.
Enter the musical settings
Set your tempo in BPM and time signature to match your DAW session. For pitched parts, enter your own key and chord progression, including where chord changes fall within each bar. Drums use tempo and time signature but do not need key or chords. Use the same settings for parts intended for the same section.
Describe the feel
Use your prompt to describe a genre or style and one broad feel. Leave room for different rhythms, voicings, and phrases. The selected stem types already identify the parts to generate; name a sound family when useful, such as upright or 808 bass.
Example: add piano and bass
Suppose your arrangement already has a melody and drums, but needs piano accompaniment and a bass part. This is an example setup you can adapt to your own piece; it is not a published generated result.
Musical settings
Select Piano and 808/Bass, with two takes each. Choose a four-bar Loop at 92 BPM in 4/4 and C major. Enter one chord per bar: Dm7, G7, Cmaj7, A7.
Musical direction
Warm acoustic jazz with a spacious feel and upright bass.
Generate the takes and listen to each. Compare the piano and bass combinations against your melody and drums. If a part is too busy, select that take and ask for one targeted change, such as “Make the piano accompaniment less busy. Keep the chords.” For a different idea, open New take instead. The Prompt Guide explains variations and the available kinds of edits.
Hear the parts in your arrangement
Export the chosen takes as both WAV audio and MIDI and place them at the intended section in your DAW. Check their entrances, chord changes, register, groove, and space around the parts you already wrote. Revise or regenerate anything that does not serve the piece.
MIDI includes human-like expressive timing and velocities, with human-curated pedaling and control changes (CC). You can change notes, voicing, or instruments; playback depends on the instrument you choose in your DAW. WAV exports are 24-bit PCM stereo at 48 kHz and carry the rendered performance you auditioned, including its sound and effects. An additional 44.1 kHz version is downloadable when ready. A loop’s WAV may include a natural tail; check the transition when repeating it.
Published example in Logic Pro
In Austin Yip's October 19 article, he starts with a Logic Pro session in D minor, with Dm–F–Am–C repeated and drums and bass guitar already in place. He selects Arp, Pad, Bass, and FX in Music Agent and enters his chord progression, key, tempo, and time signature.
Austin brings the generated parts into Logic Pro, layers them with the existing tracks, and shapes the arrangement with volume automation, EQ, and echo. He also uses his own sound for the arpeggiator.
The Logic Pro walkthrough shows downloading both WAV and MIDI, importing stems, comparing arpeggiator and pad takes, and using Bovo MIDI with a synth sound. Its published chapters also cover automation, Channel EQ, Echo, and checking the finished mix. The article and walkthrough document this workflow; the C-major example above is an illustrative setup you can adapt.
Watch the workflow
Bovo’s published walkthroughs show the actual setup and export steps. Build a guitar, bass and drum trio demonstrates an eight-bar setup at 92 BPM. Custom chords in D-flat major shows chord entry, including two changes in one bar.
Music Agent is available now. See current pricing or start with the Prompt Guide.
- Generate an editable drum groove at your tempo and meter.
- Direct a passage from C major to G major with automatic chord timing.
- Add pads and arpeggios in Logic Pro alongside your existing tracks.