Import a song and it's split into sections and bars with Apple's new Music Understanding. Tap a section to loop it, slow it down, change the key, or mute the guitar and play the part yourself. Stem separation runs on your iPhone.
I'm Renjith. At Dhwaper we've been building mobile apps for music, and we've just released Song Practice AI 3.0 for iOS 27, currently live on the app store.
App uses Music Understanding, the framework Apple added in iOS 27, to find each song's sections, bars and key for you. Tap a section and it loops cleanly on the bar. Slow it to 70%, drop it a semitone, mute the guitar, and play along with a metronome that follows the recording's actual beat.
What it gives the app:
- Beat and bar grid
- Section navigation, with one-tap section loops
- Key and tempo
- Instrument activity across the song
We'd love to hear what you'd practise with it, and what's missing.