About
A pianist's working repertoire is scattered across a shelf of books, none of which open at the piece they are on today.
Hypertoire is where those pieces live together: the handful you are actually learning, each two clicks from the last, on a screen tuned to reproduce the soft look of the printed page, whatever book or scan they came from.
It is not paper and does not pretend to be. It is a display built for a tablet on the music desk, doing what paper does well and what paper cannot: holding a piece open at the passage you are drilling, keeping your fingering where you wrote it, and turning its own pages.
Two stages, one piece
Every piece passes through the same two stages. While it is hard, you drill it: a bar range selected, looped, fingered, and where a recording exists, a playhead moving through it so you can see how someone who plays it well handles the passage. Once it is not hard, you read it: the score fills the screen, laid out for the device rather than for a sheet of paper, with your own marks on it.
What it never does
It does not listen. No MIDI, no microphone, no accuracy score, no streaks or badges or nagging. It does not re-engrave your music into something cleaner: the page you brought is the interface.
Bring your own material
Import, segmentation and annotation stay open to arbitrary scans. The shared catalog is public-domain editions and a convenience, not the product. An edition you own stays private to your library.