From theory —
Eastern · Śruti (short overview). This page is the hearing lab.
Twin:
srutis.md.Śrutis (श्रुति)
The 22 microtones under the octave — hear them against your Sa. Day-to-day riyaz still uses the twelve-tone map on Practice.
Chip label = traditional śruti name; green tag = matching 12-tone swara.
Dashed clusters = neighbours a pramāṇa (81/80) apart.
Thin lines separate twelve-key regions. Full ratios / cents / derivation:
srutis.md.