??????A simple karaoke device consists of a songs player, microphone inputs, a way of altering the pitch of your played songs, and an audio output. Some very low-conclude machines attempt to offer vocal suppression to ensure you can feed normal tunes in the equipment and take away the voice of the first singer; even so this was, Traditionally, not

??????Del Rosario was himself a pianist and was a member of the newbie jazz team Government Combo Band (composed primarily of politicians and notable businessmen). He owned a company, Trebel Industries, which was the foremost producer of pianos and harpsichords within the Philippines. Del Rosario also invented and patented other audio equipment pri