For example, there are depictions of instruments that appear to be bass violins (such as the one in Gaudenzio Ferrari's Glory of Angels, c. 1535), but that clearly show the presence of frets.
violin | bass guitar | bass | Bass Strait | Bass guitar | double bass | Drum and bass | Violin | Bass | drum and bass | Double bass | Bomb the Bass | Fender Jazz Bass | Bass Pro Shops | George Bass | Bass (guitar) | Bass Brewery | Saul Bass | Michael Devlin (bass-baritone) | largemouth bass | George London (bass-baritone) | Fontella Bass | Figured bass | Charles Bass | bass (instrument) | Thomas Bass | Robert Bass | Largemouth bass | James Morris (bass-baritone) | Hyman Bass |
with multiple harpsichords and lutes with a bass violin in the pastoral scenes followed by lamenting to the accompaniment of organo di legno and chitarrone, while Charon stands watch to the sound of a regal.
Questions are answered with on-screen interfaces (staff, piano, guitar, bass, violin, cello, banjo and several other string instruments), a multiple choice option, a MIDI instrument, or through a microphone (voice, clapping or acoustic instruments).