I’m learning a tune which has a long roll on the high B. I am able to tone it down somewhat by sliding into it from an A, but it’s very difficult to make this B roll sound sweet. I’ve tried this on different whistles, and some are easier to control than others. Breda Smythe plays this long roll B on the same whistle as mine ( not mentioning makers) and she makes the roll sound sweet, compared to my screeching attempts. 
Does anyone have any tips, tricks or advice on this?
Sure. 1. Really tighten your embouchure, and/or 2. angle the whistle around 45 degrees to the side, and blow obliquely into the windway.
You need to reduce the loudness of the note by reducing the volume of air while still maintaining the high pressure (velocity) needed to sound the note.
What is the tune and the context?
Thanks MTGuru, I’ll have to practice this. Like I said sliding into the B roll from the A Helps a little.
Here’s the clip, Its the second tune of three " Richard Dwyer’s" http://www.youtube.com/watch?v=PjdLq2V0kxk
Can you explain more in depth how you tighten your embouchure?
It’s called ‘The Fox on the Town’ and it was composed by Ritchie Dwyer.
The way I know it it doesn’t need the high B rolls at all:
ga |be ~e2 bage dB ~B2 dega be ~e2 bage degb agef ~g3 d edBA ~G3 B dGBd efgb agef gbaf ~g2 |
Thanks for that Mr.Gumby, I have played different variations which work well like your suggestion.
Ornements aside, playing a high B which hangs there for a while has always been a challenge for me. It can sound overpowering if not played with good control. Playing a short blip on the B is ok, it’s those long high b’s that get me. I always seem to dread getting to the bit with the high B on any tune, perhaps i should just GO FOR IT with more confidence.
Tunes like the Sailor’s Bonnet and the Connemara Stockings can show what you’re made off as a whistleplayer.
Ah, very nice. I like Breda’s playing, too.
Sure, why not. The Sindt is well-balanced, so you don’t need to be too careful about the volume. In fact, you can reduce your breath pressure quite a bit before the high B cracks and falls. Try playing long tones on the high B, find the lower breath limit, and shoot for just above that point when you play the roll. Don’t overblow it.
To reduce your embouchure, simply tighten your lips. Don’t take too much of the whistle in your mouth. Then make an “oooo” or “üüüü” shape, and pretend that you are kissing a mouse on the tip of its nose. 
My setting of Fox on the Town is based on Garry Shannon’s playing on WFO-1, and is very similar to Mr. Gumby’s. And I would add Seán sa Cheo (with c# and b) to the list of ear-bleed tunes.
Thank you MTguru, you have given me something to work with.
Am I right by saying Breda plays this section ga/b3 eB e3 d B3 ? I’m not sure if i’ve written this correctly but “3” is the long roll.
Breda plays different variations through the repeated sections on this part, so it’s good for me to learn all variations to my repertoire.
Yes the sindt is very well balanced and I do find this long roll more forgiving on this whistle.
My mellow dog is a little more challenging, it wants to be tamed more. I hope nobody reads anything negative about the mellow dog in this. The mellow dog is in fact one of my favorite whistles, I just need to learn how to tame that one ornament on it
Yes, that’s almost right, but the second e is not rolled:
A2|~b3e Bege|d~B3 dega|b~e3 ~e2ge|degb ~a3f|
gz ge dedB|GBdg ed (3Bcd|~e2gB Adfa|f~g2f ~gz3|
Yes that’s it! Thank you so much.
I really need to learn this ABC, What is the z? like in your gz and gz3
I understand the other parts you’ve written and they have helped me realize what she is actually playing so thank you. Is there a simple tutorial site for learning ABC?
ABC seems a very useful way of picking out ornaments of fast piece like this. I am totally illiterate musically, learning everything by hearing over and over again. I certainly don’t understand the “mathematics” of music.
I have played basic guitar for many years, if I know the chords to a tune I can play it (a bit like ABC really), but i have no understanding of what goes where and why? if that makes sense? But I think i have a good ear, and can distinguish right from wrong.
Sometimes I wished i’d understood the mathematics of music more, as it would possibly open more doors. Unfortunately there are no sessions or teachers where I live in Norway, so over the years i have picked up the whistle entirely on my own, listening to music, books and tutorials on the web, and more recently studying pieces like Breda’s by ear. C&F has helped me over the years, when I get stuck, I can ask on here. It’s sort of like asking your tutor.
much obliged
Chris
Rest.
Am I boring you Mr.Gumby?
You just need to make the leap from question
What is the z?
to answer
Rest.
Ha ha !! Told you I was Illiterate 
So z means rest, pause?
Thanks for the link Mr.Gumpy, it all looks pretty straightforward, I just have to memorize the rules.
I’ve had the house myself today, and learned quite a bit. It’s surprising how much time you put down with just one tune to get it just right.
Thanks for the help