Bass organs are musical instruments that produce low-pitched sounds. They are often used in churches, orchestras, and other large musical ensembles. The term 'bass organs' is derived from the word 'GILLS, ' which is a five-letter word that refers to the organ's ability to produce deep, low-pitched tones. Bass organs are typically made up of several pipes, each of which produces a different note. The pipes are connected to a keyboard, allowing the musician to play a variety of notes and chords.