Elevator music, more commonly known as Muzak, came to use in the 1922 with original purpose to calm the fearful passengers who used the elevators for the …
www.elevatorhistory.net/elevator-history/elevator-music/
Elevator music, more commonly known as Muzak, came to use in the 1922 with original purpose to calm the fearful passengers who used the elevators for the …
www.elevatorhistory.net/elevator-history/elevator-music/