What are nautical instruments?

Probably ... depends on user feedback. What may be a quality instrument in one persons eyes may be junk in another's, and vice versa. It's all personal preference.

the sitar

It is Wind. That is my guess......

there is no such thing as a wind instrument, an air instrument, or a tapping instrument. there are woodwind instruments (including saxes, bassoons, oboes, English horns, clarinets, and flutes) brass...

The Pipe Organ.