Del piano al fortissimo

As this organ is in Spain, I gave my improvisation a Spanish title, starting with the Viola and then Gamba, and gradually adding stops, to a grand fortissimo (without the Spanish reeds, however).

I hope you like it, as I had to play with two fingers in bandages, slowly healing - one from an operation to remove a deeply embedded splinter, and the other one from a little self-inflicted puncture.