It is necessary in the imam of the congregational prayers to fulfill certain conditions, such as being adil – i.e. to be adhering to the religions laws – and he should be able to recite correctly, and be aware of the religions laws on what is permissible and prohibited. It is not necessary for the imam of the congregational prayer to have been a student of the seminary of Qum or Najaf or any other seminary.
If such music and singing is of the type that can arouse ‘tarab’, then it is prohibited to listen to; otherwise it is allowed. ‘Tarab’ means the psychological interaction with the music or singing, whether it leads to joy, sadness, pride or any other emotion.