• Blending multiple animated images on top of each other: Very difficult to achieve, especially without massive performance lost
• Debugging - lots of “little” glitches and problems proved more difficult to solve than anticipated (e.g. “disappering” animations, imperfect blending etc.

(No certain chronological or other order)

• Recieving MIDI-Events and transferring them into useable information
• Blending a single animated image onto the background image
• Blending multiple animated images onto the background
• Created different background images with highlight-effects etc
• Colouring the animated “note”
• Controlling the different animations through the MIDI-Events