| Business | Phone |
| C & L Music 2395 Monument Blvd # B, Concord 94520 | (925) 686-6122 |
| Guitar Center 1280 Willow Pass Rd, Concord 94520 | (925) 363-7770 |
| Spitzer Music 1931 Market St, Concord 94520 | (925) 676-3151 |
| Pleasant Hill Music Studios 1200 Contra Costa Blvd # B, Concord 94523 | (925) 676-8400 |
| Rex's Guitar Studio 1931 Market St, Concord 94520 | (925) 676-1092 |