The levels ladder
Every chord type, in every inversion, on white keys, black keys and all twelve — laid out as one grid you clear a cell at a time.
One grid for the whole climb
The Levels page lays out the chords as a ladder. Each row is a chord type, from major triads at the top to thirteenth chords at the bottom, in order of difficulty. The columns split each type by inversion — root position, first, second and, for four-note chords, third — and each inversion into three sets of roots.
Every cell has a short label. The number is the chord type, the letter the inversion (A is root position, B, C and D the inversions), and the marks the roots: none for white keys, + for black keys, ++ for all twelve. So 13A is a major triad in root position on white keys, and 13C++ is its second inversion from every key.
Clear a cell at 99%
A cell counts as cleared when you play its exercise with at least 99% accuracy. Until then, a ring around it fills up to your best result so far, so you can see which levels are nearly there. Click a cell to see its full name, when you cleared it or how far you got, and Ok, start to practice it.
The tabs above the grid keep separate ladders for the Right hand, the Left hand and Both hands; Any counts whichever you use. Tick Show intervals to add the lower rungs: single notes and the twelve intervals, for when the triads are still ahead.
Not sure where to start? The placement test finds your level in a few minutes and puts you on the right rung. Clearing a cell also counts toward your badges.