Some specialist websites are basically workshops with an HTML front door.
David Chu’s Side Blown Technologies is one of them. The site is devoted to handmade wooden flutes, bamboo flutes, grenadilla headjoints, bamboo headjoints, carbon-fiber headjoints, flute overhaul, cases, and the little technical decisions that determine whether an instrument feels good in somebody’s hands.
The current homepage was still being updated in August 2026, but visually and structurally the site remains wonderfully direct: a heading, a short list of things Chu makes, and links into individual pages.
No lifestyle branding department appears to have been consulted.
Good.
The useful material is in the details
Chu’s bamboo-flute page explains why he started making his own instruments in the first place. Commercial bamboo flutes he encountered were often the wrong size, wrong key, or not pitched at A=440, so he began experimenting.
The resulting page gets specific quickly.
Small flutes around 10 to 11 inches are built in keys such as C, D and E. Mid-size flutes around 16 to 17 inches cover E through A. Bass instruments stretch from roughly 20 to 26 inches, with even larger versions extending beyond 36 inches.
He discusses six-hole and four-hole designs, cross-fingering, half-hole technique, modal scales, offset finger holes, large finger holes for greater dynamics, and the importance of binding bamboo to reduce cracking as humidity changes.
One tunable design is explicitly based on Theobald Boehm’s 1847 flute innovations.
That is why this kind of site remains useful. A generic page about “bamboo flutes” can explain what one is. A maker’s page tells you what problems actually show up at the bench: pitch standards, bore size, finger reach, cracking, hole placement and how an instrument changes when you scale it up.
The same site also covers wooden and carbon-fiber headjoints for modern Boehm flutes and practical overhaul work. It sits in that old-Web category where commercial activity and technical documentation were never cleanly separated. The person selling the object was also the person explaining how it worked.
For researchers and webmasters, there is another lesson here. A specialist site does not need a giant content system when its information architecture is obvious and the pages themselves contain the value.
CacheRat’s 1,967 Ancient Web Domains research list keeps turning up these stubborn little expert sites, and they are often more informative than the polished pages built to outrank them.
Side Blown Technologies still looks like somebody’s workshop because that is basically what it is.