You're very lucky deSousa, the modern concert hall "Kulturfabrik" is in Esch-Sur-Alzette. There's also a new trainstation specially for people who visit the kulturfabrik. It's called 'Fabrik' because the site is an old fabrik. Now there rising great buildings and a shopping center and a lot more.
You can visit this website for more information :
www.kulturfabrik.lu
Greetings,
ErikM