what would be the value of the sheet music from 1907 the girl who threw me down?
It really depends on many things. What condition is it in? Hopw good is the cover art? Who wrote and/or recorded it. Finally, and quite important, how rare are copies of the sheet music. I can't tell you the value. Sheet music isn't within my area of expertise, beyond knowing the factors that affect the value. It's a very specialized area of collecting, as both sheet music and ephemera. You need to have it valued by someone who is familiar with the field.
If you look up the Antiques Roadshow site, they have people there who will examine it.