Play word 律音階 律音階 りつおんかい ritsu scale (anhemitonic pentatonic scale primarily used in gagaku: re, mi, so, la, ti)
Play word 律管 律管 りっかん ancient Chinese pitch pipe (12 pipes corresponding to the ancient Chinese chromatic scale)
Play word 律旋 律旋 りっせん Japanese seven-tone gagaku scale (corresponding to: re, mi, fa, so, la, ti, do, i.e. the Dorian mode)
Play word 律旋法 律旋法 りっせんぽう Japanese seven-tone gagaku scale (corresponding to: re, mi, fa, so, la, ti, do) similar to Dorian mode