by Kevin Riordan, The Philadelphia Inquirer, The Associated Press Posted Apr 3, 2021 4:01 am ADT Last Updated Apr 3, 2021 at 4:09 am ADT UPPER DARBY, Pa. — “You are now seeing the biggest collection in the world, the galaxy, the universe,” said Bill Ives, the founder and impresario of the proposed Marching Pageantry Arts Museum. The introduction was a bit showbiz, but the marching band costumes, instruments, banners, flags, photos, programs, recordings, regalia, and memorabilia that Ives has assiduously amassed since 1990 — 24,000 pieces, and counting — are a showstopper. An ethnomusicology student assisting in the museum project describes the collection as one of the most significant in the country.