It's one thing having a great song, but I think for me if you take it to the next level... say you had a guitar and a vocal, and the song was amazing but the vocalist wasn't that great and it just was a guitar and vocal acoustic track, switching that to something like an amazing voice singing the exact same song with the instrumentation being really nice and lush or unique in some way and interesting and diverse... I think it's all about the instrumentation and textures in the sound.
FlumeWhat's funny for me is that I made a lot of the music I make with intentions of it being a song you listen to, to chill out.
FlumeSometimes you can just tell there's something unique about it, but you can never really truly tell until you show it to a third party - you show it to you friends, or you show it to people you know that know about music like my label or those kinda people.
FlumeMost of the music I've listened to or grew up listening to - a lot of it at least - is instrumental stuff.
Flume