When Schubert was offered a job as a music teacher by Count Esterhazy, he

He accepted it

Explanation:

Franz Peter Schubert was an Austrian composer of the late Classical and early Romantic eras, one of his most notable works included Erlkönig, written in 1815. He spent the summer of 1818 as a music teacher to tutor the daughters of Count Esterházy on his estate in Hungary.