当他仅有4岁的时候就开始创作音乐了的翻译：When he was only 4 years old when he started making music 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

When he was only 4 years old when he began writing music

When he was only 4 years old when he started making music

When he only has 4 year-old time started to create music

There are only 4 years old when he began writing music for the time when the

When he was only 4 years old when he started making music