Described are perfume and fragrance compositions and colognes containing 2,2,3-trimethyl-3-cyclopenten-1-ylalkenyl and alkylidene secondary alkanols, alkanones, cycloalkanols and cycloalkanones having the generic structure: ##STR1## wherein one of the lines +++++ is a carbon-carbon double bond and the other of the lines +++++ is a carbon-carbon single bond; wherein X is carbonyl having the structure ##STR2## wherein A' is hydrogen, CH.sub.3, C.sub.2 H.sub.5 or --CH.sub.2 --; wherein B' is hydrogen, CH.sub.3, C.sub.2 H.sub.5 or --CH.sub.2 --; where n is 0, 1 or 2; wherein each of the dashed lines are the same and each represents a carbon-carbon single bond or no bond; wherein A' and B' are both --CH.sub.2 -- when n is 1 or 2 and the dashed line is a carbon-carbon single bond or A' is hydrogen and B' is C.sub.2 H.sub.5 or CH.sub.3 or both A' and B' are each CH.sub.3 or A' is C.sub.2 H.sub.5 and B' is CH.sub.3 when n is 0 and the dashed line represents no bond, which imparts thereto rich, musky, cedar woody, sandalwood, sweet, floral, ionone-like, soft-fruity (apricot), green and earthy aromas with resinous topnotes and nutty oily nuances.