Got a yen to hear some acoustic recordings? That is, music from the early decades of the 20th Century when musicians sat before a horn attached to a cutting stylus. No electricity involved, except possibly to power the motor of the turntable.
Then check out ‘The Lateral Cut‘. It isn’t all acoustic. Some from the late 1920s and 1930s is electrical. You can even hear Cab Calloway (known most commonly today from The Blues Brothers) as a 23 year old back in 1930.
via Dr Boli’s Celebrated Magazine (enormously funny), which in turn was via Yet another weird SF fan (enormously interesting).