By popular demand (ok, ok, it was LouisD ) here is the Samba with Live Flute.(Gareth Lockrane on Flute)
This proved quite a challenging piece in terms of breathing.Of course when writing it, I breathed each phrase to check that it was all possible, but I didn't take into account the additive effect, of continually taking snatch breaths.
I can confirm that it is playable, but the flute player, is likely to be a bit light headed at the end.
Here is the GPO only file also, for purposes of comparison.
Samba with Live Flute.mp3
Samba GPO Only.mp3