The Sostenuto Pedal
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piano - How do I notate for the sostenuto pedal? - Music: Practice & Theory Stack Exchange
1975 Steinway model B 210cm fully restored + how the sostenuto middle pedal system works:
The Sostenuto Pedal
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The Sostenuto Pedal
Lūcija Garūta Bells from Etudes for the Sostenuto Pedal of a Steinway