Swing 8th notes
Basically: All 8th note combinations are played like a Quarter note/8th note Triplet combination.
The Swing 8th Note also applies to tied 8th Syncopations like this:
and Syncopation notated like this:
A flat, sharp or natural sign in parentheses ( ) means that the flat, sharp or natural is already in the key signature But if you had been playing an accidental on that note for a while it’s a courtesy reminder that you now need to play that note according to the key signature.