A fair bit of work and trial and error went into developing this instrument! The Sonny is a tribute to all the Blues Musicians of the same name, quite a few including of course Sonny Terry. The Sonny plays the basic Blues scale, with some extra notes that are very useful. The coolest feature of the Sonny is that the 7th note is at the bottom, where you’ve wished it would be so often. Ever tried playing ‘Blowin in the Wind’ on a standard whistle?
The standard Blues scale is usually 1, 3, 4, b5, 5, b7, which needs only 5 finger holes. So, the Sonny has an extra hole to get the 2 (an F#) and also a thumb hole to get the 6 (a C#). So the scale playable on the Sonny is:
E F# G A A# B C# D
With a few tricks, there are a few more ‘accidentals’ that are quite useable. The 7 (D) is a long way below the E and is quite difficult to reach, so the Sonny features a tone hole key like a clarinet or sax. And to add to the coolness factor, the tuneable feature allows the head unit to be fitted either way up. Normal like a penny whistle, or upside down, like a clarinet.
A demo of the Sonny is on YouTube here: https://www.youtube.com/watch?v=lnYCRnK0SjE
Sorry, CD not included!