It was a bit of a wait for the vocals (01.13) but no doubt you were using that time to allow the instruments to build atmosphere. And when the words came you used them so sparingly, perhaps to give them extra weight.
Secret Garden used slightly fewer words (30 in all) in their 1995 song Nocturne.
And there was a trend, back in the Swing era, to include a short vocal refrain somewhere in the middle of an instrumental (e.g. At Last, Glenn Miller/Ray Eberly, 1942).
All in all, a very intriguing piece.


My music may not set the world on fire but if it causes a glow in just one person's heart, it has all been worthwhile smile