allegro

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allegro

Music
1. (to be performed) quickly, in a brisk lively manner
2. a piece or passage to be performed in this manner

Allegro

(operating system)
The code name for the major Mac OS release due in mid-1998.

http://devworld.apple.com/mkt/informed/appledirections/mar97/roadmap.html.
References in periodicals archive ?
The cost is [euro]1,369 pp (based on a July 24 departure) and also includes return flights from Dublin, overseas transfers, [euro]75 pp on-board credit and an all-inclusive "Allegrissimo" drinks package.
A cadenza figure leads directly to the playful fugue subject, marked Allegrissimo e feroce (un poco meccanico), with an additional marking of implacable.
!"chaca-raca /chaca-raca /chaca /cha!; !chaca-raca /chaca-raca /chaca /cha!", es un tempo 4x4 o 2x4 sincopado, que puede ir de Allegro Vivace a Allegrissimo, segun variaciones de estilo: "nueva trova", dominicano, tecno...