Precise indications of the instruments on which they were for to be played were given for all these pieces. Composers in Baroque times often indicated combinations of instruments to vary at the discretion of performers, often for reasons of logistics, publicity or, last but not least, commerce.
Research reveals a vast body of work which “technically” can be played by the above formation, as well as by others. Many pieces are written to be played by a variety of different formations and it is not immediately clear which one is intended, or if and when the composer had a precise idea of sound and timbre, apart from the usual combinations found in practice and on the market.