Melodies in minor keys often contain notes from more than one type of minor scale. The key signature for the key of A minor is the same as C major i.e. it contains no sharps or flats. If there are any extra sharps (i.e. raised 6th or 7th degrees) they are written in before the note to which they apply, rather than being in the key signature. The melody of this English folk song contains an F# note in bar 8 which comes from the melodic minor scale. All the other notes come from the natural minor. The abbreviation { above bar 18 tells you to gradually slow down.
Fingerpicking Pattern 3