Duet partner expandable communication karaoke system a search range of

摘要

PROBLEM TO BE SOLVED: To shorten a waiting time when recruiting a duet partner as much as possible with respect to a communication karaoke system where a plurality of karaoke devices are communicably connected via a communication line and communication duet is possible.SOLUTION: A host device 1 (server) stores candidate song information showing candidate songs corresponding to a selected song and receives selected song information showing the selected song of a user from a karaoke device 2. When a first selected song of a waiting user who hopes to sing a duet song and a second selected song of a new user who hopes to sing a duet song anew do not match (S13), with reference to a candidate song table, it is determined whether or not there is a song which matches among a set of the first selected song and a first candidate song corresponding to the first selected song, and a set of the second selected song and a second candidate song corresponding to the second selected song (S14, S21). When it is determined that there is a matching song, the song is set as a song of the duet by the waiting user and the new user (S18 to S20).