What is the meaning of "retenu" in musical terminology?

"Retenu" is a term used in music that specifically means "held back." It instructs musicians to slow down the tempo or to take extra care with certain passages, creating a feeling of suspension or a more dramatic effect within the music. This term often appears in the context of performance directions, signaling that the musician should momentarily deviate from the established tempo, allowing for a more expressive interpretation of the music.

Understanding this term helps performers realize the emotional impact that slowing down can have on a piece, emphasizing specific notes or phrases. The other options, while related to different aspects of music, do not convey this specific directive. "Reinforcing," "first," and "bold/strong" indicate different musical concepts or instructions but do not encapsulate the meaning of "retenu."