Chart datum, level of water depth on a nautical chart. Datum or datum point, a (possibly arbitrary) reference baseline or point from which scientific measurements are made (from a Latin meaning of datum as a given, i.e. an accepted fact)
Music directors and composers must guide musicians and singers by preparing musical arrangements and helping them achieve the best possible sound. Musical talent. To become a music director or composer, one must have musical talent.
A music supervisor must have a wide knowledge of music and a passion for musical research. There is no set educational or career path to become a music supervisor. Educational backgrounds range from Bachelor of Fine Arts in music to business degrees to no higher education at all (Baskerville).