*pop song If you're writing pop, you want it to be a hit, and you want to use a non-standard chord progression? You better know your harmony theory inside out.

*pop song If you're writing pop, you want it to be a hit, and you want to use a non-standard chord progression? You better know your harmony theory inside out. Otherwise stick to the usual chord progressions. I guess it's like saying "if you want to build a native iOS app, you should probably think very hard if you want to use something other than Objective-C or Swift to build it"