Plau Concerto

[Tubamax7]

At my university, we have an evaluation after our 3rd semester and we need information on our composers. I'm Playing the Plau Concerto for tuba and strings and all I've found on him is his brief biography. Does anyone know 1) What genres he's composed? 2) His specialties? 3)Where he studied, 4) Reason for composition? and 5) Who premiered the piece? Thanks