Tempo is the speed of the music. Beat is the underlying rhythm of the music. Some musicians refer to the beat as the pulse of the music. The beat can be even or uneven. Music with a pronounced beat is easier to follow.
Meter refers to the manner in which the beats are put together to form a measure of music.
Accent is defined as certain notes or beats in a rhythmic pattern which receives more force than others. Intensity of music can be loud, soft, light, or heavy. Mood is related to intensity but carries the concept deeper into human feelings. Phrase is a natural grouping of measures. In most cases, a phrase consists of eight underlying beats.