Salut, pouvez-vous corriger mes fautes et mes incohérences, merci.

"At this time, some people are music addicts. They need music if they want to sleep, they need music when they are sad or when they do anything. Before, music hadn't this rôle in your society.
But, music can represents a way of life : ill people in their skin listening rock, cool people listen techno or old people listen classical music"

Ortho & grammaire ça va à peu près mais disons que ça fait un peu plat et bateau comme style. Certains passages sonnent mal, je l'aurais fait un peu comme ça en gardant le maximum de choses (ce qui reste donc moyen):

At this time, some people are addicted to music. They need music if they want to sleep, they need music whenever they are sad or want to do anything else. (ça fait laid de passer d'un truc précis à une generalité imo).
Formerly, music did not use to have this role in our society.
Yet, music can represent a way of life: for instance, ill ppl (in their skin?) listening/who listen to rock, cool (familier comme adjectif) ppl listening to techno or even elder ppl listening to classical music.

Hope it helps.