Art - My first international exhibition

In 1995 I had my first international exhibition. I was invited to participate at the Biennale of Malta, so I went to La Valletta and the exhibition was held in the Holy Infirmary of St. Johns Knight, something like a beautiful castle in front of the sea.
I decide to display among my paintings this one, entitled 'JAM'.
It's an image with some abstraction showing a jazz ensemble. It is curious just a few people could tell me how many musician are in the painting. Try to guess. If you want to know the answer just ask me.
1995: JAM
Acrylic on Canvas inches 27.6 x 19.7 - cm. 70 x 50
Private collection - Rome