Piano Middle C

[Arc45]

In listening to a vinly LP last night of piano music I noticed that the notes aound middle C were slightly distorted.

I haven't come to a conclusion yet but I have heard piano will reveal acoustic and other problems in a system.

I am assuming that it may be caused by one or more of the follwoing:

1) The recording itself
2) The cartridge (Grado Gold)
3) The speakers (ML ESL's)
4) Room acoustics..

Any thing I may have missed and any thoughts on this?

[markw]

but, vinyl being what it is, the record itself is always suspect.

[Wireworm5]

Speakers capable of good articulate bass is essential to producing realistic piano sound, system synergy is also necassary. Without the above, piano may sound good but never quite right.