Test your music knowledge in the online version of the Jan Willem Start Op Introrally! You hear 5 music intros that become increasingly shorter: from 10 seconds to just 2 seconds. The faster you guess the number, the more points you earn!

•⁠ ⁠Play solo and climb the overall rankings
Play daily and compete for the highest score in the overall rankings. Earn points, have a chance to win real thermo mugs and a spot at the NK Introrally!

•⁠ ⁠Play in groups against others
Challenge friends, family or colleagues and play against each other in groups. Collect the most points and show who is the greatest music connoisseur!

Download now and join in!