Learn how to use triads to create a melodic theme. Guitar lesson by Robert Renman, from http://MasterGuitarAcademy.com You can use triads in any style of music. Blues, rock, country, pop, alternative, whatever. The triad is just 1 - 3 - 5 of the scale for that chord you are playing over. Combining scales with triads is my secret weapon! I use triads a lot when improvising, because it's easy to play them, it's a simple concept while making your solos sound much better than solely relying on scales.