# Solo lab

Original piano etudes — two-hand colour, contrary motion, odd meters, independence. One note chart + Play per card (keys light). No quoted solos, no artist names.

## Path A · Two-hand colours
Am triad roll · same-key flurry · thirds climb · octave stabs · pedal colour → answer · register leaps · LH/RH call-response · tremolo · Em roll · mini form

## Path B · Meter & polyphony
7/8 · 5/4 · 9/8 · 11/8 · dense Am–G–F–E · chord-tone targeting · 3-against-4 · 5-against-4 · sequence · metric shift

## Path C · Piano etudes
Two-hand sonata sketch · progressive suite · showcase+prog mash

## Path D · Advanced independence
16th ladder · crossing-hand blizzard · wide-span arp · register teleport · two voices · 13/8 · semitone sequence · nested poly · endurance · capstone

Climb in order. Quiet shoulders; loud clarity.

Sibling: `/bass/solo-lab.html`, `/guitar/solo-lab.html`, `/ukulele/solo-lab.html`.