When I started to write this piece of music, the
purpose was do a very "zen" piece of music with no
attention on rythm (half notes are just long and
quarter notes rather shorts). Finally this is only the
cas for the first two lines. The last three lines need
a more regular rythm but not fixed, it will have to
speed little by little up to the end. Conclusion:
Exceptionally, you don't need your metronome here.
SHEET MUSIC