Tomo's approach has changed my relationship to the guitar! I had been chasing songs and tabs but never improving, noisy messy chords, feeling driven by tempo, stressful. Now I practice slowly and get in a zone and I can't put the guitar down. No noise! Very important to develop intimacy with the instrument. As I fall asleep I am imagining the triad shapes, inversions, scale degrees.
So in Tomo's lessons he suggests to try extensions of his exercises.
I want to know every note on the fretboard.
I want to see the triads around the root, the inversion, etc.. just by glancing.
Here is my combo exercise:
1) choose a random string/fret, say string 3 fret 7
2) name the note, in this case 'D'
3) choose three strings which include the chosen string, say strings 2-3-4 (or 1-2-3 or 3-4-5) this sets inversion.
4) choose major, minor, etc.. maybe choose Dm
5) play the triad in its proper inversion, in this case Dm second inversion.
6) repeat
I take notes if I stumble so I know what to practice - triad form, fretboard notes, etc.
Using a metronome:
Beat 1: combine the choosing of the root, the inversion (strings), and type (major, minor, etc..) in one glance.
Beat 2: place fingers.
Beat 3: strum the triad.
Beat 4: mute with exact rhythm - one beat long.
Very hard with a metronome! This is my proficiency exam.
This is helping me know the letter names of everything on the fretboard without progressions. I think progressions lead to memorization of the notes in a sequence, which will become a stumbling block in a different key than I am used to. It is also helping me to see the triads with the root note and the inversion, not just their shapes.