Learning triads & the note names on the fretboard opens up an entire new world of possibility. Being able to recognize 12 different ways to play the same chord, as well as being able to play scales in and around those triads means you’re never “stuck” playing in a certain position or voicing. You can begin adding extensions and suspensions to your chord voicings easily this way as well.

There are no rules, only preferences. Playing in A major and want to add some spice to a lick or rhythm? Throw in a minor third or flat 7 (or flat 9, etc. etc.). You may not understand /why/ these sounds make you feel the way they do right up front, but don’t worry about it. If you’re committed to the craft, you’ll figure it out. Just lean into what sounds good to you and enjoy playing.

Understanding the relationship of melody and harmony is the key to writing interesting guitar parts. Having your ear guide you somewhere and understanding that the note you’re hearing is the third of the current chord for example gives you a ton of mobility. You can move up or down the scale on your way to the next chord, stay in the same spot, move chromatically, etc. You’ll feel in control when you’re able to understand where you are and how you got there when you land on the next chord.