For anyone into understanding and composing in less-common keys, also check these out: 1. Ian Ring's Scale Finder and directory, which is as close to a canonic

For anyone into understanding and composing in less-common keys, also check these out: 1. Ian Ring's Scale Finder and directory, which is as close to a canonical scale reference as exists online: https://ianring.com/musictheory/scales/finder.php https://ianring.com/musictheory/scales/finder.php https://ianring.com/musictheory/scales/2475 https://ianring.com/musictheory/scales/2475 https://ianring.com/musictheory/scales/traditions/exoticisms https://ianring.com/musictheory/scales/traditions/exoticisms 2. "Modal Jazz Composition and Harmony" by Ron Miller: https://archive.org/stream/BooksOnMusicTheoryHarmonyCounterpointOrchestrationinEnglishJazzToo/_misc,%20jazz%20related/Miller%20Ron_Modal%20Jazz,%20Composition%20and%20Harmony#page/n1/mode/2up https://archive.org/stream/BooksOnMusicTheoryHarmonyCounterp... 3. "Musical Scales of the World," by Michael Hewitt: https://www.amazon.com/Musical-Scales-World-Michael-Hewitt-ebook/dp/B00B770AQE/ https://www.amazon.com/Musical-Scales-World-Michael-Hewitt-e... (available on Kindle)