The major triad arpeggio spells a major chord one note at a time — root, 3rd and 5th — the cleanest way to outline bright, resolved harmony in a solo.
The major triad arpeggio spells a major chord one note at a time — root, 3rd and 5th — the cleanest way to outline bright, resolved harmony in a solo. On guitar, the c# major arpeggio uses the notes C♯, F, G♯ — the diagram above shows every one of them across all positions of the neck, with the root (C#) highlighted so you can anchor each shape.
KnowYourNeck turns this into an interactive neck you can rotate through every position, switch between note names and scale degrees, and drill one box at a time with Focus Mode. It's the fastest way to actually learn the major arpeggio instead of just reading a chart.