For slow transitions between dynamics, a composer must use a crescendo or a decrescendo (diminuendo). A crescendo is used for gradually getting louder, and a decrescendo or diminuendo is used for gradually getting softer.

How do you use diminuendo?

He stood where he was listening to the diminuendo whisper of her dress. The diminuendo of his footsteps was agreeable to Doggies ear. Sections that use crescendo and diminuendo may be practiced separately while listening carefully for gradual changes in dynamics.

What does a diminuendo tell you to do?

Definition: The Italian musical term diminuendo (abbreviated dim.) literally means “diminishing,” and is an indication to gradually decrease the volume of the music. The musical symbol for diminuendo is a closing angle, often followed by another dynamics command (see image). Opposite of crescendo.