unclassifiable, original music, and impossible to define in simple terms...

Here are some interesting instruments (simple YT search).

My favorite is the more common dulcimer type instrument (# 3 in the first link I think) due to the music choice and the musician). 

https://www.youtube.com/watch?v=3EPdeQTTFt8

https://www.youtube.com/watch?v=_8ple6h4zWA

DeKay

Interesting stange instruments.... Thanks...

I love this idea, mahgister, thanks for the cool topic.

In the late ‘60s, a group of young men in Cologne, Germany from musical backgrounds entailing work as conductor for Vienna Symphony, tutelage of Karlheinz Stockhausen, modern avant-garde collaborations with Steve Reich, La Monte Young, Terry Riley and Manfred Schoof, but a nascent excitement and inspiration from the work of James Brown, the Velvet Underground, and Sly and the Family Stone, formed a band called Can.  
Few if any bands exemplify the term “unclassifiable music” better than Can.  
The line between choreography and improvisation and is consistently blurred, thusly a unique song structure defines their work, the rhythmic invention and juxtaposition of disparate sounds, attitudes and musical forms is constant.  
To my ears and mind, some of the most thrilling artistic ambiguity I’ve experienced occurs on Can records from ‘68 to ‘74.

Captain Beefheart and His Magic Band.  
Try to explain this music.  
With endless subversions of commonly accepted harmony, percussion and song structure in popular music, Don Van Vliet provides not only unique vocals but incomparably complex lyrics and an utterly incomparable point of view of seemingly everything one associates with popular music.  
Awe-inspiring, thrilling and delightful.

The album Lumpy Gravy by Frank Zappa has music that sounds something like the Hawaii Five-0 theme, bizarre (often hilarious - ‘I HEAR YOU’VE BEEN HAVING TROUBLE WITH PIGS AND PONIES!!’ ‘mErRY gO rOuNd, mErRY gO rOuNd, do-doo-doo-doo-Doo…doo-doo-doo, doo-doo-doo…and they call that ‘going your thing’…oh, yeah? THAT’s what ‘doing your thing’ is…’) spoken word, violent tape editing, lush and gorgeous orchestral music, music that sounds like Danny Elfman, music that sounds like a warped, twisted Dixieland Jazz, musique concrète, and profusions of completely uncategorizable music and sound.

Thanks

Magma!