The technical expertise needed are:
Practical experience of planning, developing, building, deploying and maintaining a website - both functionally and aesthetically – the beta website is built using Drupal 7.0 so expertise with Drupal is essential
Good knowledge of social network design and integration best practices
Experience of developing for large scalable web deployments
Can-do with complementary team player attitude
... and, of course, an interest in music would be grand.