larghetto

A composer writes a larghetto when he feels something like writing a largo but isn't, on the whole, quite up to it.

Have you never shed a furtive tear—excuse my old-fashioned romanticism—over the bars of the B major Larghetto in the same work?

There is an example of the latter in Chopin's Sonata I (the larghetto movement).

The alto then takes up a larghetto in six-eight time, key D minor.