Typically  British eccentric affair involving steam railways, brass bands, Leslie Cabinets ( no - me neither) , rock stars turned respectable scientists and a half-decent conductor.

http://www.bbc.co.uk/programmes/b090xv6w

Thankyou 

By Leslie Cabinet I presume they mean a Leslie Speaker? For non-guitarists/organists, it produces a "sweeping" effect on the sound produced which is Doppler in action.

https://en.wikipedia.org/wiki/Leslie_speaker