Music bookstores or online bookstores, music websites or forums, music conservatories or university libraries, etc.

Music bookstores or online bookstores: You can search for books related to band scores in music bookstores or online bookstores. Books often contain sheet music for various instruments in the band for band members to refer to and use together.

2. Music websites or forums: Many music websites or forums provide services for sharing or selling music scores. You can search for band scores on the site and communicate and share scores with other music lovers.

3. Conservatoire or university library: Many conservatory or university libraries have rich music score resources. You can go to the library to consult the staff for information about band scores.