Fudleysmith

I had the exact same situation when I started playing at church (a Hispanic Baptist Church where the piano, guitar, and bass play by ear) and found that the best approach for me was to record the tunes during rehearsal, transcribe the melody lines [a lead chart], and add some appropriate trumpet fills.

Don't forget that the chord notation on your example is in concert pitch and will need to be transposed up a full step (C becomes D) for your Bb trumpet.

Now that I have done it for over a year, it is much easier to add fills "on the fly", but I still transcribe all of the songs that are new to me so that I at least have a basic road map of the chart.

I use Noteworthy Composer (shareware) for the notation and now we have added a tenor sax, a violin, and a flute to the group so the transposition function is very handy.

Hang in there. It gets easier with practice and it has helped my jazz playing considerably because I'm no longer terrified to go "off the sheet" on a solo.

__________________
Fudleysmith

Conn V1 Rose brass bell
GR 65M #1bb

Conn V1 Flugel (Satin Silver)
GR 65FD

Conn 8DRS
Lawson S670/P10G 705