How To Play Xylotar Card Game

About Xylotar, from BoardGameGeek:

In the card game Xylotar, you've found the long-lost xylotar schematics for the instrument originally designed by Bobby McColdsnap and Keifer Basset. This unique musical device was based on both xylophone and synthesizer technology in the mid-80s and was created as an alternative to the keytars of the era. Without knowing exactly how it should work, play until you discover the sweetest sounds. The player who scores the most points has found the perfect balance of 80s synthesizer rock and modern carimba-style melodies. Only then can you mass produce the xylotar, succeeding in your goal of achieving moderate commercial success! In this trick-taking game, players know only the colors of their cards and their relative order. Use deduction and observation to figure out the value of your cards, then bid to try to gain extra points. -description from the publisher