World of Music Slot. HOW TO PLAY. World of Music is a 3 reel 5 line classic slot machine. Choose the slot machine you wish to play, €/$0.50, €/$1.00, or €/$2.00 , then choose the amount you wish to bet by clicking on the "Bet 1" button. "Bet Max" will select 3 coins and spin immediately. The amount wagered is not deducted from your account until you spin the reels. If you exit the game before hitting the spin button, you will not lose any credits.