I've found the major and minor pentatonic scales, as well as the notes on the fretboard, to be good things to master, if you're gonna master something. Arpeggios too, although they're kind of a subset of pentatonics. I've found those genuinely useful in sprinkling some cool stuff in here and there when the mood strikes me. I find that this little bit of knowledge enables that.
However, the reality is that most of this journey, for me, is about learning songs.
I find it massively rewarding to cover a song, no matter how "simple" it might be, REALLY well. Playing it cleanly, really nailing the timing(I mean REALLY nailing it). I record everything so I get instant, honest feedback.
So don't downplay learning songs, I think it can serve a very important purpose, and if that's your thing I think it can be a very legitimate primary focus.
However, the reality is that most of this journey, for me, is about learning songs.
I find it massively rewarding to cover a song, no matter how "simple" it might be, REALLY well. Playing it cleanly, really nailing the timing(I mean REALLY nailing it). I record everything so I get instant, honest feedback.
So don't downplay learning songs, I think it can serve a very important purpose, and if that's your thing I think it can be a very legitimate primary focus.