What mode starts on G and has 2 flats, Bb and Eb?

The mode that starts on G and includes two flats, Bb and Eb, is the G Aeolian mode, also known as the natural minor scale. The notes in the G Aeolian scale are:

  • G, A, Bb, C, D, Eb, F, G

This aligns with the key signature of Bb major but starts on G, making it the relative minor scale or Aeolian mode based on G. Thank you for your clarification.

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