This page is a stub. You could probably expand this page should you wish to do so.

Atonal instruments cannot be used to play the passtune. When you apply an atonal instrument, you do not get a "Improvise? (yn)" prompt.

Atonal instruments in NetHack 3.4.3 are:

• bell
• Bell of Opening
• leather drum
• drum of earthquake

The main use of these is waking up monsters. The non magical variants of these have little other use, but do have some use, for example, enabling an Elbereth square.

In NetHack, whistles are not instruments.