Final answer:
The question asks which note is one step away from a pictured note but lacks the necessary image of the note to provide an answer. Normally, the note one step away would be directly adjacent on the musical staff in the treble clef.
Step-by-step explanation:
Without the image of the note provided, answering the question about which note is one step away from the pictured note is not possible. In learning how to play the piano, mnemonic devices like "Every good boy does fine" can help students remember the notes E, G, B, D, and F for the lines of the treble clef. If we had the image of the note, and knowing that it is a one step away, we would be looking for a note that is directly adjacent on the musical staff, either one step higher or lower in pitch.
If the note provided was for example an E, then F would be one step away ascending, and D would be one step away descending on the treble clef. However, since the provided note is not shown, it's imperative that visual information is included to answer such questions accurately.