I agree with Moira, but as a classical singer I would advise you to translate classical songs from the 19th and 20th century. That way you learn lots of new descriptive vocabulary, poetic language and as the vast majority of these songs were first poems by famous poets...the grammar is usually excellent.
I've learned so much about European languages and have picked up so much vocabulary relating to nature, love, music etc this way..hope that helps :-)