Hi Tony - I use the chord you describe above as an ending in jazz tunes only I use a dominant seventh as the basis for the chord (B flat in the key of C) - I usually precede this with the same chord structure a semitone above. So for ending a song in C I first play C#-F-G#-C-D#-G-A# followed by C-E-G-A#-D-F#-A (With two hands of course) . This sounds fantastic using brass as a big band ending.

Glad you're getting better.

KFINGERS