The notes by Asha (above) sound wonderful! I must get some good spruce oil. Today's report is on an obviously inferior product. The Body Shop "Black (Colorado) Spruce" home fragrance oil.
I did the usual method of 5 drops oil in 50 ml water, heated in a simmering potpourri. The scent was so faint that after I while I added several drops into the pool. Slightly more scent. Then I added several more drops. Slightly more scent.
A lemony-sweet scent, at times vaguely like pine but more often like green (under-ripe) cantaloupe.
The search continues...