- How sure this is
- These words were traced back to where they first appeared. That source is listed below.
- What turned up
- Letter to his father Leopold Mozart, Vienna, 26 September 1781. Primary archival letter.
- Work
- Letter to his father Leopold Mozart, Vienna, 26 September 1781
- Occasion
- 1781
- Sources checked
- en.wikiquote.orgChecked using claude-sonnet-5, 21 August 2026Sourced section, cites the 1781 letter