Double bass, viol-shaped, side and front views.
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The term "contrabass" is relative, usually denoting a very low-pitched instrument of its type rather than one playing in a particular range. For example, the contrabass flute's lowest note is approximately an octave higher than that of the contrabass clarinet. Instruments tuned below contrabass instruments, such as the double contrabass flute or subcontrabass saxophone, may be referred to as "double contrabass," "triple contrabass," "subcontrabass," or "octocontrabass" instruments. On the other hand, the "contrabass" classification is often taken to include such instruments as well.