For a very small group of people, the past two days will forever be known as a lost weekend. You see, on Friday night, we decided to take a look at

And all of a sudden it’s Monday morning already.

The weekend has passed in a blur of musical jam sessions, challenges and banter, thanks to this brilliant interactive site. Pick an instrument, learn how to play it, then challenge your mates to come and join in your jam session. To say this is addictive, and a shedload of fun, is an understatement.

As the name suggests, you need Chrome to run it, but once you’ve sorted that, you have a selection of on-screen musical instruments to get to grips with. Guitars, synths, keyboards and drums, both standard kit and machine-based. The only taxing bit is getting to know your chosen instrument.

Then it’s time to play on.