To provide a method for displaying a Karaoke music selection number in which the selection number of the piece of music to be sang is immediately found for a Karaoke music provider, a control ledger of Karaoke music selection number, a portable computer device, a system for introducing Karaoke music selection number and a method for providing karaoke music selection number information.

A music selection number control column 3 is provided with a music name column in which the names of pieces of music are written at the upper section. A plurality of music provider columns 5a to 5f are provided at the lower section of the column 4 to display the names, marks and abbreviations of a plurality of music providers who provide Karaoke music. Moreover, music selection number columns 6 are provided next to the column 5a to 5f to display music selection number imparted by the respective music providers.