Yes, that's correct. It is in the form of they.
it depends on the tense. in present: Nosotros perdemos (we normally lose) in past: nosotros perdimos (we lost) / nosotros perdíamos (we used to lose) nosotros perderemos (we will lose) nosotros vamos a perder (we're going to lose) nosotros perderíamos (we would lose if...)
It comes from the verb Escuchar, which means "to listen". Escuchamos is the 1st person plural of that verb and it means, "We listen".
Estamos
To add the unos makes no sense, unos means *one. nosotros means (masculine) we... estudiantes is students.. meaning We (males) are students.. not sure why you have unos though *Unos (plural) actually means 'some, a few' (un(o) means one) So 'We are a few students'.
Nosotros - if all boys or mixed with females Nosotras - if all females So for instance. Nosotros hablamos espanol. Nosotras hablamos espanol. You can omit nosotros/nosotras, unless for emphasis
nosotros tenemos - we have
The correct form of the verb, for nosotros and present tense, is "fascina". Past tense is fascinó, future is fascinará.
Musica means music.
nosotros/nosotrasNosotros
Nosotros vamos.
'de nosotros' = 'of us'
Musica humana