Answer:
Creo que estas hablando de el primer signo el cual indica que se debe repetir el compás anterior. Se utiliza para repetir un fragmento que tiene uno o mas compases diferentes al final.
A membranophone, it's sort of in the name. A membranophone is any musical instrument that produces sound with a vibrating stretched membrane. An idiophone is somewhat similar and produces sound by vibrating when hit but does not use strings or membranes (the instrument as a whole vibrates).
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1 2 3 4
1 2
1 and 2 3 4
1 rest 3
1 2 3
rest 2 and 3
1 2
1 2 3
I’m not sure if this is 100% correct
The 1980s saw the emergence of dance music<span> and </span>new wave<span>. As </span>disco<span> fell out of fashion in the decade's early years,</span>[1]<span> genres such as </span>post-disco<span>, </span>Italo disco<span>, </span>Euro disco<span> and </span>dance-pop<span> became more popular. </span>Rock music<span> continued to enjoy a wide audience.</span>[2] Soft rock,[3]glam metal<span>, thrash metal, </span>shred guitar<span> characterized by heavy distortion, pinch harmonics and whammy bar abuse became very popular.</span>[4] Adult contemporary,[5] quiet storm,[6]<span> and </span>smooth jazz<span> gained popularity. </span>