HI

I was just wondering if any of you had heard of the following double reed instruments and if you have if you could tell me what they`re like.

E flat oboe, oboe da caccia Hecklephone, Sarrusophone, Alos, Racket, Cutral double, Crumhorn, Shawm

And if you could tell me what the differences are i`d really like to know. Thanks a bunch!

~Corinne