Altered Scale Ex 3 This 12-bar in 3/4 time moves between A7#9 and a more elaborate version - A7#5#9. Starting at the 10th fret, play the first eight bars applying a one-finger-per-fret strategy, with your first finger on the 10th fret and your fourth at the 13th (and 14th). The second half features octaves strummed with the picking hand thumb, so it’s essential to mute unwanted strings with your fretting hand fingers. I prefer using first and fourth finger to fret octaves on these sets of strings. To finish, we touch upon a classic jazz sound, playing the 3rd (C#) then jumping up a major 7th to the #9 (C), then the b9 (Bb), to finish on the root (A). Symmetric Diminished Ex 1 This example shows how the Symmetric Diminished scale can be used on a V chord (A13b9) that resolves to a I chord (Dmaj7) in a major key – D major. This sequential pattern is a classic jazz pattern, heard more in other instruments groups like sax and piano and it’s a fairly challenging one. There are some major stretches and changes of position, so make sure you take your time to settle on a good fingering and stick with it as you build up the speed. After the initial descending sequence, we go back up the scale, to finish on the A note, which is the 5th of the Dmaj7 chord.