Erviti has published Basque musical scores since it was established in 1875. Now run by the fifth generation, it stocks traditional Basque musical instruments, including an alboka (single-reed woodwind instrument), txistu (three-holed wooden pipe), ttun-ttun (six-stringed instrument named for the sound it makes) and a kirikoketa and txalaparta (both wooden percussion instruments similar to xylophones).
You can also buy violins, clarinets, saxophones and guitars here.