Although I'm waiting for certificates to confirm exact locations, my gg-grandfather John Beat was born in Kingsbarns, Fife (1882) and his father, also John Beat was born (unconfirmed dates) and married in Kingsbarns, Fife in 1827 to a Janet Thompson.
I have no other info at the moment but by the 1851 census dates, John Jnr had moved to London which is where my grandfather was born in 1907.
If there is a possible connection with the Beat name, it would be good to hear from you.
Regards
Cheryl