Review: Fred Lebayle Rosie Bass Sax MP
Fred Lebayle Rosie Bass Saxophone Sax Mouthpiece Rhodium Plated Size 7 Date of manufacturing: Circa 2023 Date of review: 2023/26 I wrote the bulk of the review …
julius keilwerth
SX90R straight alto with engraving typo
In this day and age of knockoffs and counterfeits, we should all be leery if any item we are thinking of buying doesn’t quite look …
New Dörfler & Jörka (D&J) research/page
I am very pleased to unveil the newest in my 2026 research: the analysis of the Dörfler & Jörka (D&J) data I published earlier this …
GebrM for JK large MOP key touches
Julius Keilwerth saxophones are known for many things: their huge sound; big bells; accurate intonation; sturdy build; longevity; and big MOP key touches. But something …
Is a bass sax right for me?
Originally published Dec. 2024. Updated Mar. 2026 Over the past few years I have lost count the number of times I’ve seen posts online saying …
Hammerschmidt octave patent
Originally published in 2024. Updated March 2026 German patent application Background Summery Figure 1 Figure 2 Patent claims Photos of Hammerschmidt octave vents 1961 Hammerschmidt …
Is a vintage sax less reliable?
Updated July 2026 I was having an interesting conversation on a sax discussion board the other day about my new SX90R Shadow tenor. A bunch …
Beware: Fake Keilwerths made in China
Originally published in 2021. Updated in 2026. 2026 Update Info Definitions Consequences Fake Keilwerths Fake Shadow Tenor Compare & Contrast Necks Front Views Left Hand …
What exactly is a vintage saxophone?
Updated July 2026 This post was originally inspired in 2013, by a thread on SOTW that got me thinking about a term that is bandied …