The MIDI is a great rendition as Alan testifies. Here's an ABC version of the melody - this notation might help to find its French ancestor on the Web:

X:1
T:ROSBIF Melody
M:3/4
L:1/8
Q:1/4=100
K:C
z4AB|c2AB cA|c2AB cA|B2GA BG|A2A4|c2AB cA|
c2AB cA|BA GA BG|e2e4|e2cd ec|d2d4|
c2AB cA|B2B4|c2AB cA|cB AB cA|BA GA BG|
A2A2AB|c2AB cA|c2AB cA|B2GA BG|A2A4|
c2AB cA|c2AB cA|BA GA BG|e2e4|e2cd ec|d2d4|
c2AB cA|B2B4|c2AB cA|cB AB cA|BA GA BG|A2A4|]

Regards, John