After Louis Spohr with the violin duets op.9 and op.13 had rather met the demand of the publishers for conventional teacher-pupil-play literature, he presented with the following duet collections opp. 39 and 67 clearly more demanding works, which have it not only play- but also movement-technically in itself. The two violinists Ursula Schoch and Tjeerd Toch present here the first installment of their complete recording of the duets opp.39 and 67. The members of the Concertgebouw Orchestra show that in these pieces the listener also gets his money's worth.