강남가라오케 In 1975, the Filipino entrepreneur and piano maker Roberto del Rosario also claimed to own invented the 1st karaoke-form device generally known as the "Sing-Alongside Technique" (SAS). The device incorporated several features enclosed in one portable cabinet casing; like an amplifier, a speaker, a double or solitary tape deck, https://ronj544btl4.dm-blog.com/profile