- QWhich model do I need for guitar?
- 6stem. It is the only one that treats guitar as its own part — in 4stem the guitar is folded into "other".
- QDoes it work for acoustic as well as electric?
- Both are handled. Heavily distorted guitar, and parts whose timbre is close to a synth, can bleed into "other" — results vary by track.
- QCan I separate the lead from the rhythm guitar?
- No. The model separates instruments, not the roles they play, so lead and rhythm share one track. Where the parts were panned apart in the original, listening to the extracted guitar one channel at a time gets you some of the way.
- QDoes bass bleed into the guitar track?
- Rarely. Bass sits far enough down the spectrum to be an easy call for the model. The parts that bleed are piano, synths and strings — the ones sharing both register and timbre. When something sounds wrong at the bottom, the more likely explanation is guitar low strings going out to the bass track.
- QWhy is it unavailable on my phone?
- Guitar only comes out on its own with 6stem, and that model exceeds what a phone can allocate; the page states as much where the option would be. Phones run up to 4stem, where guitar is folded into other and cannot be isolated. Open the page on a computer.
- QIs it really free? Do I need to sign up?
- It’s completely free with no account needed. Just open the page and pick a file.
- QIs the song I choose sent anywhere?
- No. All separation happens entirely inside your browser.
- QWhich file formats are supported?
- MP3, WAV, M4A, AAC, FLAC and OGG, plus the audio track of video files.