Practice Identifying the 5 most common Key Signatures.
Order of Sharps & Flats
The Sharp Rule is: Last 1 Up 1 (Find the last sharp [furthest to the right] and go up one letter / line or space to determine the
name of the Key). Said another way...the last sharp is "Ti"...go up one line or space to get to "Do" and that line/space/letter name is the name of the Key.
Practice Identifying the SHARP Key Signatures.
The Flat Rule is: The Final Flat is "Fa" or The Penultimate Flat is "Do." Penultimate simply means next-to-last. Look for the
line or space that the next-to-last flat is on and that's the letter name of the Key.