I-D-P-L-M-A-L is a memory device to remember the order in which musical modes follow each other. A common way to remember this order is to remember the phrase "I Dig Phat Ladies - Mostly All Lesbian" which will help you to order the modes in the correct manner:

Ionian
Dorian
Phrygian
Lydian
Mixolydian
Aeolian
Locrian
"Shit, dude! What mode comes after phrygian?"
"Just remember I-D-P-L-M-A-L! I... Dig... Phat... Ladies..."
"Lydian! It's lydian! Fuck, you are a pro!"
"Your cursing is beginning to sound like a locrian triad to me."
"What?"
"The tritone."
"What?"
"Why are you even in this class?"
by Billybobilly December 10, 2007
Get the I-D-P-L-M-A-L mug.