Jam together online using jammr. Play live online jam sessions with other musicians for free. Help · Premium · Jammr Forum · How it works. Play music with others online in real time. Play with multitrack audio of your favorite music. Musician community. WANT TO COLLABORATE OR JAM ONLINE? eJAMMING IS EASY Plug in your guitar, drums, keyboards or mic. Fire up eJamming AUDiiO in your computer.