Suite 2 in the Bach suites is in D minor howcome the first note sounds like C# even though its written on the 3rd line(d)?
Very interesting !! Just listened to the opening bars, and it's in C#minor. That's probably why it sounds like a C#, not a D. Now whether the recording has been slowed down a smidgen is conjecture, or whether the cello is actually tuned differently I don't know. So, yes it sounds like C# 'cos it is. Couldn't find one in 'Dm'.Unless, of course, the tuning was not well tempered.