What instrument has the widest range?

Answer 1

Overall, the organ has the widest range when you take into account the eleven octave range between a 64' stop and a 1' stop.

Electronic instruments are the only instruments capable of surpassing this. However, the highest notes are beyond the range of human perception.

Of the string instruments, the cello quite definitely has the widest range by virtue of the player's ability to use a thumb position to gain access to its highest notes, an option not open to a violinist. Besides, even if such were open for the latter, the excessively high notes after a point cease in their practical utility when a point much more than three octaves above middle C is reached.

Of the woodwind instruments, the Clarinet has the widest range (dynamic as well as scalar). If one adds the basset notes as on the instrument used by

Mozart in his concerto, the range becomes even wider, as the upper notes

in this case very remarkably do not suffer in quality by the addition of those

lower notes necessitated by the slightly added length of the instrument.

Of the brass instruments, Horn has the widest range due to its unique conical design that is different from other conical instruments because of its rather long tubing that widens much slower than other conical brass instruments, and the instruments ratherly small and dissimilar mouthpiece design. Although

in truth all brass instruments can have a particularly wide range depending on the players ability, even though as a class, their dynamic range is enviable.

Answer 2

The piano has the bigest range.