Bach’s Sinfonias, known to generations of piano students as Three-part Inventions,provide the powerful platform for a programme of works bristling with rhythmicenergy and songful melody. Janáček’s Sonata ‘From the Street’ captures theoutrage, defiance and despair provoked by the death in 1905 of a workerbayoneted by troops during a protest in favour of a Czech university in Brno.