Haskore.Performance
type Performance
data Event
type Time
type DurT
type Volume
perform
type PMap
data Context
type Key
perf
metro
merge
data Player
type NoteFun
type PhraseFun
type NotateFun
defPlayer
defPlayNote
defNasHandler
defInterpPhrase
defPasHandler
defNotatePlayer
fancyPlayer
fancyInterpPhrase