I am not so competent using many of the Basenotes features, so I apologize if this is a little clunky. I received your message from July 31. The message for me reads a little cryptic on my end, as perhaps the original fragrance that sparked your note was not brought into the conversation. Perhaps something is lost in translation, so to speak. Please ask me again what it is you want to know, including the original fragrance that sparked your query. I would really appreciate it! There is nothing worse than not being able to help a fragrance friend.
You are asking me to compare an aldehyde galbanum fragrance? You mention No 19, Iris Poudre, etc. I can't really make any comments based on the original message from you, which seems lacking information.
Please contact me again and we'll get this sorted out!