Beethoven's Symphony No. 8 in F major, op. 93 was written in 1811 and 1812 and appeared immediately after the 7th Symphony. Beethoven had abandoned a piano concerto project begun directly after the Seventh Symphony; material from this abandoned piano concerto flowed into the 8th Symphony. Among other things, Beethoven worked on the symphony during his stay at the spa in Teplitz, where he wrote his famous letter to the Immortal Beloved, which was possibly never sent.