The chromatic scale is a scale that contains every note between two notes of the same name. Each note will therefore be one semitone apart. Study the C and A Chromatic scales as shown here.
Two common chromatic scale patterns are shown next. Special attention should be given to the suggested left hand fingering.
The next lick is played within the first Chromatic scale pattern, key of A.
The second Chromatic scale pattern is used for the following lick.