1=120 If this symbol were notated at the beginning of a 6/8 score, it would indicate .

120 eighth notes in the music
120 eighth notes per minute
120 measures of music
120 quarter notes per minute

120 eighth notes per minute.

Explanation:

The timing is a jig, (6/8 timing) meaning that there are 6 beats per measure and the 8th note gets one beat. 120 is the metronome speed, indicating that the piece must be played at the speed of 120 eighth notes per minute.

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i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

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