Guides
Learn songs faster
Practical, step-by-step guides for slowing down music, looping the hard parts, pulling instruments out of the mix and learning any song by ear.
How to Slow Down a Song Without Changing the Pitch
Why slowed-down music usually sounds lower, and how to keep the key while you drop the tempo.
Read the guide → Slow DownerBest App to Slow Down Music on iPhone
What a slow downer app needs for real practice, and a checklist to compare your options.
Read the guide → Vocal RemoverHow to Remove Vocals from a Song
Make a karaoke track or a clean instrumental on your iPhone with AI stem separation.
Read the guide → BassHow to Isolate the Bass in a Song
Pull the bass line out of the mix so you can hear, and learn, every note.
Read the guide → Ear TrainingHow to Learn Songs by Ear
A repeatable method: find the key, slow it down, loop phrases and check yourself against the stem.
Read the guide → A-B LoopHow to Loop Part of a Song for Practice
Set A-B loops that land on the bar, and use tempo ladders to get a passage up to speed.
Read the guide → KeyHow to Change the Key of a Song
Transpose any recording to fit your voice, a capo or a tuned-down guitar, without changing tempo.
Read the guide → AnalysisHow to Find the BPM and Key of a Song
Detect tempo and key automatically, and double-check them by ear.
Read the guide → Backing TracksHow to Make a Backing Track from Any Song
Drumless, bassless or karaoke: build the minus-one track you need to play along.
Read the guide → MIDIHow to Convert Audio to MIDI on iPhone
Separate a part, export it as MIDI, and open the notes in GarageBand or Logic.
Read the guide → GuitarHow to Learn a Guitar Solo
Break a solo into licks, slow each one down, and build it back up to full speed.
Read the guide → LyricsHow to Get the Lyrics from Any Song
Transcribe lyrics from an audio file with AI, and follow them line by line as it plays.
Read the guide →By instrument
Made for your instrument
Guitarists
Slow down solos, loop the lick, and play along over the band.
Song Practice for guitarists →Bassists
Solo the bass stem and hear every note under the kick drum.
Song Practice for bassists →Drummers
Drumless tracks from any song and a click that follows the tempo.
Song Practice for drummers →Singers
Karaoke tracks, synced lyrics, and a key that fits your range.
Song Practice for singers →
Try it on your next song
Slow down, loop, split stems and follow the lyrics. Free on the App Store.
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