The Collaborative International Dictionary
Holding note
Holding \Hold"ing\, n.
The act or state of sustaining, grasping, or retaining.
A tenure; a farm or other estate held of another.
That which holds, binds, or influences.
--Burke.-
The burden or chorus of a song. [Obs.]
--Shak.Holding note (Mus.), a note sustained in one part, while the other parts move.
Wiktionary
holding note
n. (context music English) A note sustained in one part, while the other parts move.