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"Museos" is a form of "museo", a noun which is often translated as "museum". "Música" is a form of "música", a noun which is often translated as "music". Learn more about the difference between "museos" and "música" below.
el museo()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
la música()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
