As if by coincidence -- Soundboards old & new -- The musical instruments en forme de clavecin by or attributed to Johann Ludwig Hellen -- Mozart and the pianos of Johann Andreas Stein -- Johann Andreas Stein and the search for the expressive Clavier -- Entries concerning clavichords in the notebook of Johann Andreas Stein -- The development of the Streicher firm of piano builders under the leadership of Nannette Streicher, 1792 to 1823 -- The Hammerflügel of Johann David Schiedmayer -- Clients of Johann Andreas Stein recorded in the notebook of Johann David Schiedmayer and elsewhere -- Musical instruments in the history of furniture : the pianos of Ferdinand Hofmann -- Sounding change : the pianos of Anton Walter -- Johan Andreas Stein and Anton Walter : a comparison of two piano makers -- An autumn story