Ok this one is for you who understand how messages are encoded in music tabs work.

Today we had a flood of posts, my first though - D5. Today is 1st May

If D = the first derivative of a function and 5 = May then D(5) could = 1st

Searching D(5) gives you the chord D#5 chord. Same day as Q posts us link to some sheet music for "To the color"

Maybe someone smarter than I can do something with this