I am interested to know where the Eb diminished 7 in the first 4 bars of jazz standard I Wanna Be Around come from? My guess was that it relates as being a sort of tritone substitution for the V of the D-7, which is A7. Does this make sense?
My next question is how would you approach it when playing over the intro changes? We are nicely in C and then the Ebdim7 pops up. I have been playing a Diminished arpeggio but it feel s but boring!
I was also considering that Ebdim7 is the same diminished system as F7b9 which could be viewed as a Csus13b5#9 which TBH doesn't make much sense as a usable chord but maybe it could be used to played a mixolydian or altered scale? Another option is that B7b9 is also part of Eb diminished scale and of course can be seen as the VII of C major.
Perhaps I am over thinking this! Any thought? Thanks in advance!