What does 'con brio' indicate when playing a piece of music?

'Con brio' is an Italian musical term that translates to 'with spirit' or 'with animation.' It is used to indicate that the music should be played lively and energetically, encouraging a bright and spirited performance.

While 'with vigor' may seem similar to the actual meaning of 'con brio,' it does not fully capture the essence of musical animation and liveliness that 'con brio' invokes. The emphasis here is on the spirited quality and engaging nature of the performance, rather than just strength or force.

The other options refer to different emotional states or characteristics in music. For example, 'with grief' would denote a melancholic or sorrowful playing style, and 'at a comfortable speed' refers to tempo rather than spirit or energy. Understanding 'con brio' helps musicians convey the intended mood of a piece, which is central to expressive performance.