Ia faatupuina se faaupuga e sili atu ona lavelave o lenei fuaiupu na taalo ai Petri i le Dresden Court Orchestra ma le string quartet a lona tamā a o talavou pea.
O le mea moni, o se lomiga e sili atu ona lavelave o le fuaiupu o le "Petri taaalo i le Dresden Faamasinoga Failautusi a o talavou pea ma suesueina tuufaatasiga ma teori ma Hermann Kretzschmar ma Felix Draeseke i le Dresden Conservatory. "