Custom built computer running Windows 7 Professional. Intel Core i7-3770k CPU @ 3.50GHz. 64-bit OS with 32 Gigs of RAM.
My entire song suddenly had every track go from C to somewhere in between Db and D. Tempo did not change. Whole mix sounded like it had just inhaled helium.
We have NO IDEA why this has happened to us. Any and all suggestions gratefully received.