One day I was in a seminar class on planning, with one of my mentors, Meir Ezra, and he laid out his system, in a kind of refined Gantt chart, and I realized I was looking at a sort of planning symphony, with harmonic elements in parallel, melodic elements in sequence, and rhythm cycles of weeks or work cycles. Music notation does not make that obvious but a view called piano roll notation perhaps can show the parallels with a Gantt chart like view on the wall behind him. Music (and Meir) grow your brain!