Just the other day, someone came into the library looking for sheet music. I wish I had known about Mutopia then; I might have been able to use it to find what was needed. Mutopia is a growing collection of sheet music editions of classical music for free download. And while it’s great to have a searchable database of downloadable scores, the Mutopia Project is also interesting because it encourages people to make their own arrangements, transpositions or editions of musical scores that are licensed for such re-mixing, or that are in the public domain. Composers can contribute new scores, but to do so they must apply metadata that would make a librarian proud. I wonder if that will be a barrier to contribution. Another service that the Mutopia Project offers is to have sheet music printed and or published through Lulu.