How long is a piece of string?

Can't believe I'm actually doing this, albeit with regard to how long the strings are between the notes in musical scales! (I'm not sure what use this will be to anybody not very musical, in day to day life ....)

Well, this is block 9, so I've been very busy - despite not being able to concentrate very well, due to the nervewracking wait for the U316 result (still don't have)!

I got 98% for TMA01, which is quite miraculous! In fairness though, that one wasn't exactly very difficult - and I am not expecting similar for subsequent ones!