go get error happened #1
Description
Hi, nice product owner.
I will report that go get failed :)
$ go get github.com/dbatbold/beep/cmd/beep
# github.com/dbatbold/beep
../../../../go/src/github.com/dbatbold/beep/midi.go:393:15: midi.music.Playback undefined (type *Music has no field or method Playback)
../../../../go/src/github.com/dbatbold/beep/music.go:536:9: m.Playback undefined (type *Music has no field or method Playback)
../../../../go/src/github.com/dbatbold/beep/piano.go:110:28: undefined: HomeDir
../../../../go/src/github.com/dbatbold/beep/sheet.go:38:27: undefined: HomeDir
../../../../go/src/github.com/dbatbold/beep/sheet.go:44:23: undefined: HomeDir
../../../../go/src/github.com/dbatbold/beep/sheet.go:78:28: undefined: HomeDir
../../../../go/src/github.com/dbatbold/beep/sheet.go:98:24: undefined: HomeDir
../../../../go/src/github.com/dbatbold/beep/violin.go:91:28: undefined: HomeDir
../../../../go/src/github.com/dbatbold/beep/web.go:136:2: undefined: InitSoundDevice
../../../../go/src/github.com/dbatbold/beep/web.go:149:5: undefined: StopPlayBack
../../../../go/src/github.com/dbatbold/beep/web.go:149:5: too many errors