Apex domains cannot have CNAME records.
Question and response
Question
dig tobytwiningmusic.com. NS
Answer
tobytwiningmusic.com. 5 NS ns-915.awsdns-50.net.
tobytwiningmusic.com. 5 NS ns-363.awsdns-45.com.
tobytwiningmusic.com. 5 NS ns-1777.awsdns-30.co.uk.
tobytwiningmusic.com. 5 NS ns-939.awsdns-53.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0