I recently got a new Burke brass session D, the “new updated” design, and thought I’d offer some impressions and information that may be helpful. I’ve spoken with Mike’s wife, Susan, about the changes and hope I’m passing along accurate information. Mike often checks the site, so if I’ve omitted any important points or have misstated anything regarding the technical aspects or reasoning behind the changes, I know he’ll reply…and I’ll offer any necessary apologies now.
I own and play several Burkes that I absolutely love, and have purchased all but one directly from Mike over the years. I love the overall tone, balance and purity, dead-on accuracy, and playability of Mike’s whistles. They’re great for studio work, sessions, stage performance, and, well…anything you want to do.
I had a brass session years ago that was amazing but in a weak moment got rid of it. Now that I’ve developed an interest in getting another, Mike has changed the design. I’ve discovered new designs of any product aren’t always necessarily “better”, so I’ve always been a fan of “if it ain’t broke, don’t fix it”. And Mike’s brass sessions have always been a standard on which to base other session whistles. It took a while to get used to this new design, but in this case, the new design hasn’t really changed the overall character and tonal personality of the well-respected Burke session whistles. But they do look different.
With the previous design, the finger tube was glued into the bottom of the tuning slide. However, when whistles needed repair, this made separating the finger tube a difficult task. So in order to facilitate repairs, Mike has changed the design so the finger tube is inserted into the tuning slide, tightly held in place by internal rings that I believe are Delrin to avoid seizure. You needn’t worry about this affecting tuning, because it’s designed for the tube to be pushed all the way into the slide until it snaps into place and stops.
Mike also updated the mouthpiece/tuning slide connection by using Delrin rings inside the top portion of the slide in order to prevent seizing. With the previous design, there was always the possibility of seizure if the pieces were left together and never taken apart/maintained. From experience, I know this is especially true with aluminum. The Delrin rings are a major change in this area and it’ll be interesting to see how it holds up over time. I’d imagine if the connection becomes less tight over time for some reason, the Delrin rings can be replaced. But Delrin is pretty tough, so it’d take a lot of movement to wear the material down. And if you’re like me, once the tuning is set, I don’t mess with it.
The mouthpiece itself has been lengthened and is 37mm (1.5") from the end of the mouthpiece to the front of the blade. I’ve made a bunch of whistles and know a longer windway facilitates backpressure, making a whistle easier to play. I also learned the trade-off is a less-responsive whistle. However, Mike has figured this out, and the new design is still very responsive. Total length when in A440 tune is 302mm or about 11.875".
The window appears to be slightly wider than the previous version but can’t verify that since I don’t have an older one.
Because of the mechanics of the detachable finger tube, the tuning slide is significantly longer at 68mm (2.6875") and looks much like a 150mm ammo cartridge casing. This is a significant piece of brass and adds some heft. I haven’t weighed the whistle but it’s fairly hefty…about the same as my Reyburn session D that uses a thicker wall tubing. I wonder if Mike has considered making the tuning slide out of aluminum to reduce the overall weight? That’d be an interesting and unique looking combo.
The best thing is the new design seems to have retained that renowned Burke session sound…round, deep, and pure through both octaves. Intonation through both octaves is dead-on. I may be imagining things but it seems like the first octave may be a bit stronger than the previous version with a strong bell note. The second octave is pristine and the high A & B notes are so well balanced, they just sing out with absolutely no variance in volume from the notes below unless you lean on it. And you can really lean into the second octave, maintaining nice pure notes without breaking or screeching.
It’s not quite as loud as I expected it to be, and although louder than my 2004 Burke narrow bore aluminum (wonderful whistle), the difference isn’t significant, which surprised me. This is probably due to aluminum producing a brighter tone that’s perceived as being louder than it really is. In contrast, my Reyburn session D is obviously louder than the Burke brass session. I recorded both, and had to turn the rec vol down on the Reyburn. But the Burke is plenty loud for most sessions. As expected, it’s certainly louder than the Burke narrow bore brass I used to have. For unusually loud sessions when I need a cannon, I pull out my Chieftain high D, although I’ve been in a few sessions when even the Chieftain couldn’t be heard, so just sit back, smile, and listen. Thankfully, those situations are rare.
I have to admit, when I first pulled this whistle out of the included pouch, I was taken back by the size of the tuning slide and overall heft after being so familiar with the older whistles. But the more I play it, the more I like it.
I’ve edited this post to add that not only has Mike upgraded the sessions, but has upgraded the included pouch as well. It’s the same basic design as the previous Naugahyde pouches with fold-over flap and belt loop on the back but appears to be a very durable black nylon with more padding and is very light. Of all the whistles I’ve purchased that came with a pouch, this is the best one I’ve seen.






