Piano · classical & jazz
Read music faster.
Play it better.
Upload any sheet music. kat-on plays it, listens as you play on your own piano, and shows you exactly which bars to practise next.
From a PDF to playing it
in three steps
How it works
- i.
Upload any sheet
Drop in a PDF, MusicXML, MIDI or ABC file — we read the notes. Anything we're unsure about, you fix with one tap.
- ii.
Play along on your piano
Connect a digital piano. Notes light up as you go; wrong or late ones are marked, bar by bar.
- iii.
Practise what matters
Every session ends with the two or three bars worth looping — slowly, then up to tempo.
Two paths
Classical,
or jazz.
Or both.
Classical
- Graded pieces from Bach to Satie
- Scales and arpeggios in every key
- Sight-reading drills at your level
Jazz
- Lead sheets with chord symbols
- ii–V–I in all twelve keys
- Blues with a backing band
Keep going
Practice that sticks.
Short daily routines, streaks, stars for each piece and badges you can keep private or share — rewarding careful practice, not just time spent.
Ear training
Think you're tone deaf?
Only about 1 in 70 people truly is. Short, friendly ear games start easy and get harder only as you get them right.
For teachers
See the week between lessons.
Assign pieces and bars, spot who's stuck on bar 5, and comment on recordings at the exact moment.
For parents
You're always in the loop.
Practice time and streaks at a glance. Nothing is recorded or shared without your OK.
Pricing
Start free.
Free
- Open your own MusicXML, MIDI and ABC files
- Practice player, metronome and piano connection
- Trouble spots after every run
Full access
Price to be announced
- Unlimited pieces and PDF reading
- Classical & jazz paths, theory coach
- Recording, badges and sharing
Teachers & schools
Price to be announced
- Classes, assignments, recordings
- Parent view for every student
- Licences per seat