This paper presents netpd, a framework intended for making music collaboratively and in real-time written in Pure Data (Pd). Users join by connecting to a central server in order to have a session together (not much unlike a jam session in Jazz music) and load self-written or pre-existing instruments (Pd patches) to play with. The framework maintains state synchronicity between clients at any given time by exchanging control messages over the server. The protocol in use is fully based on OSC.