Choose one of these and stick with it: https://en.wikipedia.org/wiki/Mnemonic_major_system https://en.wikipedia.org/wiki/Mnemonic_major_system https://en.wiki

Choose one of these and stick with it: https://en.wikipedia.org/wiki/Mnemonic_major_system https://en.wikipedia.org/wiki/Mnemonic_major_system https://en.wikipedia.org/wiki/Dominic_system https://en.wikipedia.org/wiki/Dominic_system Both are good. You can train mnemonics via Anki deck: https://ankiweb.net/shared/info/2032755489 https://ankiweb.net/shared/info/2032755489