"5 dots above" and "5 dots below" refer to the marks in music that extend the duration of notes. The specific explanation is as follows:

"Add dots on 5" (i.e. "five dots in a row"): means extending the duration of a note to double the original value plus half. For example, if the original note is a quarter note (1/4 beat), adding a dot becomes the duration of an eighth note (1/8 beat) plus a quarter note (1/4 beat). In other words, the note's duration is doubled plus half.

"Add a dot under five points" (i.e., "Add a dot under five points"): It means extending the duration of a note to twice its original value and then subtracting half of it. For example, if the original note is an eighth note (1/8 beat), adding a dot becomes the duration of a sixteenth note (1/16 beat) plus an eighth note (1/8 beat). In other words, the note's duration is doubled and then halved.

As for the "flat blowing" and "super blowing" you mentioned, these terms are related to the adjustment of pitch:

"Flat blowing": means playing according to the pitch marked in the score, No pitch adjustment.

"Overblow": means to slightly raise the pitch when playing, usually a slight adjustment made when playing high notes.

These terms are used in musical notation and music instructions to help performers understand and perform the piece accurately.