Various, Chambers's Journal of Popular Literature… (1853)
“ At the last sale, these articles formed two distinct lots, and they realised more than thirty-six thousand francs—that is, fifteen hundred pounds sterling.The question of ‘musical pitch’ has for many years troubled musicians, each country adopting a note giving a different number of vibrations per second as its standard. In Britain, we have the Philharmonic pitch, and when any one talks of having his piano tuned up to concert pitch, the Philharmonic standard is the one indicated. ”
