Hi. I noticed a new feature in sx900. The range of octave change in this model, unlike previous models, is from -2 to +2. And the strange thing is, this feature is not done with the octave button on the panel. To do this, you must use the voice edit menu or voice setting menu. Voice edit=Common=Part Octave: change octave manually (-2 to +2)
Voice setting=Tune: change octave manually (-2 to +2)