The music at the party (to be) very loud and could be heard from far away.

Question

The music at the party (to be) very loud and could be heard from far away.

Answer 1

The music at the party was very loud and could be heard from far away.

Если помог, прошу отметить как "лучшее решение". 

Answer 2

The music at the party were very loud and could be heard from far away.