There’s a tradition of books organising chord voicings based on different tonal limitations. Some are complex like Mick Goodrick’s almanac series. Some are application based, like Steve Khan’s Contemporary Chord Khancepts book.

In Pentatonic Voicings, composer-guitarist Hristo Vitchev examines the A minor pentatonic scale.

Now the question is: How did he get to 65 pages of material here?