From certain points of view, any object that produces sounds could be considered a musical instrument, as long as the sounds are controllable and have a musical sense.
In the Middle Ages, music fans could enjoy live music for viola da gamba, harp, fiddle, gaida, mandora or psaltery. The oldest string instruments could be chrotta and the marine trumpet, the last one is, despite its name, being a monochord bowed string instrument. The wind category of the period is represented by the schalmei, the serpent, the crumhorn, the recorder or the bagpipe. Numerous instruments are no longer in use, except for the viol, the lute, the clavichord or the flute. From certain points of view, any object that produces sounds could be considered a musical instrument, as long as the sounds are controllable and have a musical sense. The electro-acoustical device in this image is a theodorian b. The picture was made in the studio of the artist who made it and gave its name.