Hey Bill, I just noticed your name. I know it's fairly common but are you the Bill Sinclair playing piano with Chris Beck and others around the South Bay?
The thing about transposing is when you hit the key sig box, what do you do with the prompt that pops up? Forgive me if you know this already but the problem is with a lot of downloaded Biab songs, the key sig is wrong. The chords look correct, it plays correct and you know it's in F but the key sig says C or something else equally wrong. When you click to change it to F, you have to say no to the question "OK to transpose the worksheet?" because you first have to make the key sig and the chords match. Now that the key sig says F and the chords are in F if you want to change it to Bb, hit the key sig box again, change it to Bb, say yes to the transpose question and everything is ok.
Btw, I agree with you my Biab file of Funny Valentine is in Eb, not Cm. Whether or not to use the relative minor can be tricky though. Most of the Real Book tunes use the major key but some are using the minor, it can make a difference in how the chart prints out if you need that function.
This type of theory question comes up all the time on the forum and there's quite a bunch of classically trained players, working studio pros and other very educated players here too. Same at HQ in Victoria. Google Oliver Gannon, Peters brother or Miles Black their staff pianist. Those cats are world class. It depends on perspective. To a gigging musician I think of being on the bandstand and someone calls out Footprints and you don't know it. The guitarist will say it's a blues in Cm with a flat five turnaround, he won't say it's in Eb.

Bob

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