(Lat.) : At will, or at the pleasure of the performer, typically an optional part that may be left out. Opp. is obbligato. Also, an allowance to play the passage freely, especially with regard to tempo.
(Latin), "at liberty." 1) After an instrument name (e.g., Guitar II ad libitum) it indicates the optional omission of that part. 2) As a tempo marking it indicates rhythmic freedom. 3) In a cadenza it indicates improvisation or rhythmic freedom. Abbr.: ad lib.
without advance preparation; "he spoke ad lib"
Add abbreviation ( ad lib.) after Ad Libitum.
at liberty, may be omitted.
A term which permits the performer to vary the tempo and/or to include or omit a vocal or instrumental part.
Indication that gives the performer the liberty to omit a section or to improvise.
Ad libitum is Latin for "at one's pleasure", often shortened to Ad lib.