A slightly loaded question I admit, but really.... besides inept instrumentation (like my saxophone playing....which sends the African Lion scurrying for quieter fields) is there BAD music?
Anybody who has followed any of my posts around music will know there are certain genre's that I am very.... very .... dismissive of. Country and Western music springs to mind immediately. Trance and psychodelic not far behind.
O' Fortuna from Carl Orff's Carmina Burana - Performed here by UC Davis Symphony Orchestra, the University Chorus and Alumni Chorus, and the Pacific Boychoir perform at the Mondavi Center at UC Davis
In fact that video is the entire suite... be careful you could easily be sucked down the music rabbit hole.
Nickleback - Burn it to the Ground
Whitney Houston - I will always Love You
{thinks}...'This cannot be bad music ...1,086,097,474 views 6.1M Shares
A Billion views?? Never seen that before.
So different not so? Classic, rock, soul.... how about some electronic music {friendly wave to 
Jean Michel Jarre - Oxygene
Can you imagine the reception this got when Deep Purple, Black Sabbath, Uriah Heep, Led Zeppelin were all strutting their stuff at the time?
Lets move on ....
Moist - Push
Grunge ... a supposedly subtler version of Rock but to be honest the distinction escapes me but a genre just the same. I enjoy Grunge!
Right, I reckon there is enough here for one to accept that there is no such thing as bad music except badly executed instrumentation or really bad vocals, both solid reasons why I am not in the music business.
Anyway, I end this post with another music category .... namely JAZZ. How the hell does Chick Corea weave such magic on the keyboards??? Enjoy and thanks for listening.
Return to Forever featuring Chick Corea, Al Di Meola, Stanley Clarke and Lenny White