An ABC of MusicEpisode 11: K for KeyboardBBC One Duration: 10 minutesFirst broadcast: Sun 19th Dec 1976, 13:40 on BBC One WestLatest broadcast: Wed 16th Aug 1978, 19:15 on BBC Two EnglandChristopher Hogwood works back over four centuries, via pianoforte, fortepiano, square piano, harpsichord and clavichord.GenresFactualArts, Culture & the MediaMusicSeriesAn ABC of Music Source: BBC Online