Harpsichord and organ music is (as far as I know) written without dynamics marks, as you cannot control the volume, and often without tempo indication, as the name of the piece implies it.Also, it would be interesting if one would write in the score: forte or piano, crescendo or diminuendo, staccato or legato, presto or grave; there could be a lot of possible executions of the piece. Best regards, Dr
One example which immediately springs to mind is the Schumann Toccata, which includes an introductory note explaining his reasons for this abstention. Not that it's entirely marking-free, but almost. The underlying tempo, in particular, has been subject to wide extremes of interpretation as a result.
Great example, it is hard to make the Schumann Toccata sound really interesting. I only know one pianist that is currently active that has done a great recording of it and thatīs Pogorelich.