How is a vinyl record recorded?

The master record is cut on a machine a little bit like like a record player, only the music is fed TO the cutting needle and imprints the groove with ridges and bumps as it cuts. the needle moves across the record at a pre- determined rate.The coil of swarth that comes off the needle is sucked up by a tiny vacuum cleaner to stop it from piling up.The master is duplicated by a moulding process.