tune

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tune

1. a melody, esp one for which harmony is not essential
2. the most important part in a musical texture
3. the condition of producing accurately pitched notes, intervals, etc. (esp in the phrases in tune, out of tune)
4. accurate correspondence of pitch and intonation between instruments (esp in the phrases in tune, out of tune)
5. the correct adjustment of a radio, television, or some other electronic circuit with respect to the required frequency (esp in the phrases in tune, out of tune)

tune

[tün]
(electronics)
To adjust for resonance at a desired frequency.

tune

(jargon)
(From musical, possibly via automotive, usage) To optimise a program or system for a particular environment, especially by adjusting numerical parameters designed as hooks for tuning, e.g. by changing "#define" lines in C. One may "tune for time" (fastest execution), "tune for space" (least memory use), or "tune for configuration" (most efficient use of hardware).

See bum, hot spot, hand-hacking.
References in periodicals archive ?
Entertaining, educational and trusted by women, viewers can tune in to America's premier morning show The Balancing Act on weekday mornings at 7:00 am (ET/PT) on Lifetime television.
National and local public-and talk-radio shows have long been used to introduce new authors and new works to audiences who tune in for intellectually stimulating conversation.
The owner of the print, Le recueil de chansons nouvelles, wanted to sing a new song that had been written to the tune of "Laissez la verde couleur," which by then went by the alias "Le chant du bel Adonis." But memory failing him or her, our singer or a friend or teacher wrote the tune in the book at the bottom of the page as a reminder of how it went.