Lyrical is a kind of contemporary dance that is used to describe dance that has more of a connected and continuous movement pattern (ie soft, gentle): and some other term probably exists to take over the dramatic, contrasting, sharp movement style that can also exist under the umbrella of contemporary.
Hard hat sizes can seem a bit mysterious. To measure for your hat size, place a soft cloth tape measure around the widest part of your head (this is usually just above the eyebrows). Pull the tape measure snug, but not tight. Convert inches to hat size using the sizing chart below.
The calculator has a chart that includes stitches per inch variables from 2-6, along with how many stitches to cast on for six different head circumferences. The hat calculator can also help you through the dreaded task of making even decreases when the time comes to shape your hat.