Yes. When there is one B flat for one note in the whole measure, it means it's the same note until you get a different note in another measure
He constructed the music as a child's introduction to the orchestra, with each character in the story represented by a different<span> instrument or group of instruments: Peter by the strings, the bird by the </span>flute<span>, the duck by the </span>oboe, the cat by theclarinet<span>, the wolf by the </span>horn<span> section, and so on.</span>