Karya, built on 2020-11-26T21:03:17 (patch 23b5be2d53a9e8e7d6136cda5aae2849abe5cded)
Calls that use EnvKey.track_voice to infer things about the track. For example, you can automatically have the first and second tracks get hand=l and hand=r, respectively. If you use the local definitions file to bind >pno = infer-hands, then every >pno track will both set the instruments and the hand. Only explicitly named instruments are counted, so you can still have multiple tracks for one hand, if they are named >.