Putti playing music

At Rops, they sell on 12 or 13 April 2015 a nice large (40 by 62) drawing or monochrome painting of putti (or cherubs) playing music, estimated at 80 to 120 Euro. UPDATE: sold for 240 Euro.

I tried to find out more, but only came across a poor copy of it (with the timpani replaced with more serious drumming), which lacked further information. This seemed to indicate that a good original had to exist, either by the artist of the work for sale or by a better artist, but sadly I couldn't find this better version, so I'm still stuck here. But it is an interesting painting, and with more research one may perhaps find the original and the artist.