To provide a game machine which gives variation to the performance of a game and reduces burden on the visual sense of a player.

The game machine determines a combination of a plurality of patterns in response to operation by the player, outputs a bonus according to the combination of the plurality of patterns, and generates a musical sound for performance. The correspondence relation between the combination of the patterns and a combination of musical scales is stored into a RAM 26 in a controller 23 as a table. A CPU 24 in the controller 23 detects the combination of the picture patterns determined with the progress of the game based on a signal from a reel position detection circuit 34, determines the musical sound by referring to a table stored in a ROM 25 based on the above detection result, and generates its musical sound data to output to a sound source circuit 39. The sound source circuit 39 synthesizes a musical sound signal based on the musical sound data output from the CPU 24, and drives a loudspeaker 21 with the synthesized musical sound signal.