I am trying to sequence Mozart Piano Concerto No 2 and there is a plus sign (+) over a few of the notes. What does this signify?
Are you sure it's a + sign? It could be an 'accent à mordent' (which looks like a little z with a vertical line through it).
It could be a fingering indicator. Where the European continent has always used 1-2-3-4-5, England used "+" for thumb, then 1-2-3-4 for the fingers.
Cheers,
Ewan
If it is in the horns, it means a stopped note.