Lester William Polfus (Les Paul) invented multi-track recording in 1929, after he invented the electric solid body guitar in the late 1928, this allowed musicians to join separate lines of music and lyrics to be blended into one, with sound on sound which evolved into overdubbing and reverb effects in recording and multi-tracking(adding separate parts on the tape or CD at the same time), this made recording possible without stopping and re-taping the whole song, now …showed first 75 words of 303 total…

…showed last 75 words of 303 total…into the recording machine, he got a job to make an advertisement on the local radio, and said he had to record this. He did this by getting a balanced record player getting a motor and hooking it up to the belt, and then scratching in the groves of the record, but he learned he could scratch more than one tracks. Now Les Paul lives in Manhattan and plays guitar every night like never before.