Calling all musicians. Grab your smartphone, tablet or laptop and help us sonify the Thames by playing music generated live by tidal data. Simply click on the PLAY link, select your instrument, and play the tide. (If you want to tailor the music generated then there are many further options you can choose from). Once you have got the hang of the live notation, help us to build our archive by filming, photographing, or audio recording yourself, then send them to us with the time, date and location of where you are playing to firstname.lastname@example.org. We want to see you playing the tide from your living room, from the banks of the Thames, from your garden! And please let us know if you have any comments on the notation so we can adapt it further!