I just go it in the mail yesterday, a Mezzo, or as Misha calls it, Low A. It's a beautiful whistle and it sounds wonderful. The notes are solid with just the right amount of chiff and back pressure for me.

It's fun to get a new toy once in awhile.

I'm a big fan of MK Low D's but I've never had the chance to try one of his Mezzo A's.

His Low D's have a special unique tone. Some don't care for it, but I love it.

It's clearer to say "Mezzo" because there are whistles an octave below, I have one. They're often called "Bass" to make it clear.

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Richard Cook
1978 Quinn uilleann pipes
1945 Starck Highland pipes
Goldie Low D whistle

Yes, I also have an MK Low D. I like the sound of it as well. This Mezzo A has a great tone and the notes seem solid and in tune. It's just a pleasure to play.

Standard (mezzo) A and Bb whistles I just call A and Bb. There's rarely much need for distinguishing terminology till you get down to G (where I'd probably say high, alto or bass G if necessary), but agreed mezzo describes the 'slightly lower than high D' area well when you have to.

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Yet still the blood is strong, the heart is Highland,
And we in dreams behold the Hebrides.

Some old stuff, written and played by me

Thing is, I own a "bass" A whistle, an octave below a "mezzo" A whistle.

If somebody calls their whistle a "low" A whistle I wouldn't know which was being referred to, the kinda-sorta-semi-low or the super-uber-hella-low.

G whistles can be got in three octaves! to make things more confusing yet.

I'd like to hear a recording of something done with the three octaves of G whistles...

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Richard Cook
1978 Quinn uilleann pipes
1945 Starck Highland pipes
Goldie Low D whistle

I was just listening to a MK low D on instagram. Fabulous sounding instrument

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You don't stop playing when you get old, you get old when you stop playing!
My musical endeavours on my blog https://mymusictree.blogspot.co.uk/