Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en friction harps300426006aluminum harpsfriction harp Instruments that produce sound by rubbing aluminum rods instead of plucking strings, and which can be played vertically or horizontally. An original version was invented by John Calhoun Deagan and called an “aluminum harp.” friction harps (traducció pendent) friction harps (traducció pendent) 2026-03-30 20:46:16