Guitar
Classical, AcuTab Publications, Affedis, Guitar Solo Publications, Guitare Diffusion, GuitarGalleryMusic.com
AAMusicStore.com
Large selection of popular sheet music, musical instruments and accessories.
Amati Music
Offers music for Cello, and the PostureCubes: a portable, adjustable solution to back problems.
Discordia Music, Inc.
Publisher of new, transcribed, and arranged music for the Double Bass.
Joseph Patelson Music House
Classical sheet music store with extensive offerings for all instruments.
Lamoureux Violins
Sheet music, books, strings, supplies and accessories for classical musicians; Teaching material and aids for traditional and Suzuki method.
Lemur Music
Offers sheet music, instruments, supplies, and misceallany for the Double Bass.
Manontroppo Music
Offers arrangements for string ensembles. Some samples are included, and mail ordering.
Mona Lisa Sound
Offering Rock string quartet sheet music made famous by Hampton String Quartet.
The ABCs of Strings
Janice Tucker Rhoda's instructional series for strings.
Trioville
String trio sheet music publisher for violin, cello and viola. This publisher has sheet music for gigs, contests and sight reading with grade levels 3 through 5.
Valkyrie Publications
Song books and sheet music for harp and voice: Irish folk songs, Christmas carols, old hymns, new Christian music, and songs inspired by J.R.R. Tolkien, George MacDonald, and Julian of Norwich.