around 10 or 11.
In about 1890, when he was 28.
Franz Joseph Haydn started his music training when he was six years old. He started composing in 1753 with the opera Der krumme Teufel.
Beethoven was 9 years old when he started to compose.
he started composing at like age 7.5.
She started composing it when she was 18 x
20 yrs oldthat'swhen he started composing
Kabalevsky was 14 (1918) when he started studying piano at the Scriabin Music School. He started composing at the age of 18.
As soon as they had a comprehensive knowledge of counterpoint and instrument ranges. Mozart started composing at around age 4.
23 years old or 45 He only lived to be 35, so the age "45" above is erroneous. He started composing at age 5.
One that springs to mind is WA Mozart. A 20th century composer who also started composing their own pieces was Frederik Magle in Denmark.
Beethoven never gave up composing. He started to compose before his teens. He had sketches for a 10th symphony when he was died.
Beethoven began composing works of music when he was ten years old.