accelerandos

For extreme examples of the accelerandos and ritenutos which our metrical ear seems willing to accept easily, one might compare two

The Principles of English Versification Paull Franklin Baum

Professor Marshall faced the piano again and precipitated himself headlong into the diabolic accelerandos of "The Hall of the Mountain-King."

The Bent Twig Dorothy Canfield Fisher 1918

His aunt was vastly susceptible to music, and he would heap upon her (in the absence of any other) all those passionate reproaches for cruelty and faithlessness proper to the rôle -- welling crescendos and plaintive diminuendos and long, slow rallentandos, followed quickly by panting and impassioned accelerandos.

With the Procession Henry Blake Fuller 1893

In diminuendos and accelerandos and ritenutos he was just as faithful.

Old Scores and New Readings Discussions on Music & Certain Musicians John F. Runciman 1891

And Sally, after an intricate movement with a safety-pin, an openwork lace cuff that has lost a button, and a white wrist, goes down three accelerandos of stair-lengths, with landing pauses, and ends with a dining-room door staccato.

Somehow Good William Frend De Morgan 1878

Metron offers a high-precision engine and a bar based sequencer to provide detailed control over tempo settings and time signatures, including accelerandos and ritardandos as well as a tuner that can be calibrated to cent level.

The Mac Observer 2009

Vignoles and Genz approach Wer hat dies Liedlein erdacht? in a similar way, and in their execution effect some fine accelerandos that accentuate the text and culminate in an exemplarily clear and even rendering of the vocal line that brings the piece to its conclusion.

Opera Today 2009