Unid on 6979,95
1537 music, long instrum. track, 1543 next one
1549 long blank, ut. noise, 1552 instrum. music
1603 long blank again, 1607
1614 same kind of tronic music, 1615 suddenly slow spelling R A _ _ U R (?), off
That was the situation just after the swich off.
Later, ID as Stretchyman, testing, announced by op in the reply below