Famous even in retirement, Pacchierotti was visited by many well-known figures, including Rossini. On the singer's complaining that the latter's music was too noisy, the composer retorted: "Give me another Pacchierotti and I will know how to write for him!" Another visitor was Stendhal, who remarked that: "I learned more about music in six conversations with this great artist, than from any book; it was the soul speaking to the soul." Though now out of the limelight, Pacchierotti continued to practise, being particularly devoted to the Psalm settings of Benedetto Marcello, from which he averred "to have learned the little that he knew". On 28 June 1814, he underwent the emotional experience of singing in Saint Mark's Basilica in Venice at the funeral service held in honour of his old friend and favourite composer, Ferdinando Bertoni. He last sang in public on 19 October 1817, at the age of seventy-seven, performing a motet in the church of Mirano, a few miles west of Venice. Famous for this remark that "he who knows how to breathe, knows how to sing", he also taught singing, and it is likely that a treatise by Antonio Calegari, entitled "Modi generali del canto" and published in Milan in 1836, is at least partly based on Pacchierotti's own methods.