Rossini's operas chased Handel's operas out of the opera houses of Europe, and he made a bundle on them. At age 37, he gave it all up in an act known to musical historians as the Great Renunciation. In the 1930's it was discovered that a combination of bipolar disorder and a bladder condition had taken Rossini out of the game.
Thirty years later, Rossini had surgery to fix his problem, and he returned to composing. But rather than return to opera or great works, he decided to compose short piano pieces for "third rate pianists such as myself". He collected these into several volumes titled "Sins of My Old Age".
One of these pieces is a cute little number that Respighi orchestrated decades later under the title "The Fantastic Boutique" along with other Rossisi piano pieces. Old timers will remember this number as the theme of a Sunday night show on CBS in the Fifties titled "Playhouse Theater".