The rhythm of the – is free, and the rhythm of the – is more regular. The harmony of the aria is based on a chromatic – that descends by half step. The slow and melancholy – meter expresses in the aria Dido's lamentation at Aeneas's departure.

The rhythm of the recitative is free, and the rhythm of the aria is more regular. The harmony of the aria is based on a chromatic ground bass that descends by half step. The slow and melancholy triple meter expresses in the aria Dido's lamentation at Aeneas's departure.

Explanation:

Rhythm is a word used to describe a constant, regular, symmetrical and ordered movement. A musical rhythm, therefore, refers to the repetition of intervals within a song, with different patterns, considering it to be regular, long, irregular, weak and strong, which are presented with the objective of being part of the musical composition. Within the musical rhythm, we can find two categories: the recitative rhythm that is free, and the aria rhythm that is more regular.

Aria is a musical composition that can be sung by one or two singers and composes a larger musical work, such as an opera for example. The harmony of the aria is based on a chromatic bass that descends half a step.

The triple meter, in turn, is a musical meter, as the name says. It presents itself as a division composed of three hits on the bar, based on the in the upper figure of the time signature. The slow and melancholy triple meter expressions in the aria Dido's lamentation at Aeneas's departure.