Apex domains cannot have CNAME records.
Question and response
Question
dig musvc.com. NS
Answer
musvc.com. 5 NS ns-967.awsdns-56.net.
musvc.com. 5 NS ns-47.awsdns-05.com.
musvc.com. 5 NS ns-1706.awsdns-21.co.uk.
musvc.com. 5 NS ns-1349.awsdns-40.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0