I've had synesthesia for as long as I can remember. I have sound/colour, sound shape, grapheme colour (numbers/words), ordinal linguistic personification (numbers), and spacial sequence synesthesia. Whenever I hear sounds, I see a coloured shape. For example: When three of my friends were talking, I saw a teal circle, a magenta ring, and a dark purple haze. All the different scales, instruments and songs have colours. I can tell the quality of the music by the colour. If a group was trying to play an intense song, orangey red means that they are not very good, red means that they are average, and blue means they are exceptional. Numbers and words also have colours. The word curvature is bluish green while oaf is cream white. Here are how numbers look:
1-shy and light blue
2-nice and orange
3-red and obnoxious
4-cobalt and like a business like man who thinks he is to important for his own good. He is tiny; a chihuahua who fancies himself a pitbull
5-dark purple and just like four except tall
6-pink and content
7-grey and mean (picks on one)
8-teal and elusive
9-green, oversized and awkward
0-yellow and bossy
The months of the year are spaced out in a circle around me. January is to my left near my feet, April is about shoulder height, the summer months are above my head, the fall is to my right ending with december near my feet.