Not sure about that title – sounds like the “Pentatonics” might be a religious denomination or a sexual orientation. But they’re neither. Pentatonic scales are really useful constructions that creep into all kinds of music, from the simplest to the most complex. I’ve published a couple of music and TAB exercises – one each for major and minor – to help to guitarists get familiar with them and apply them musically.
The exercises are sequences based on G major and G minor – the cunning plan is that you practice them in all keys. (Refer to the Circle of Fifths diagram on the right – just start at any point and play in each key around the circle until you arrive back where you started.) The sequences are organised into the widely used CAGED system. There is method in this madness.
And if you want to know more about pentatonic music generally, try this! (Alert: heavy-duty theory warning.)