I first want to thank Spidey for the excellent reference material on his site for aspiring flute builders. Next, after reading material on Orion's Gate flute site I am interested in tuning my next flute to a five-hole pentatonic Minor scale. According to what I have read, the minor tuned five holes are "error-free" in that any note can be played against the other without ever sounding bad ( a big bonus for the musically challenged...me). Is there a resource out there that list formulas or knows just what the differences are between the five and six hole flutes? Spidey has come up with a great spreadsheet to calculate these positions and sizes for a six hole. Thanks and I promise that this will only be a medatative diversion as I ponder the next clamp placement on my strip-built Melonseed. Help, I have no idea what I'm doing, but I do know what I want it to sound like.