Listen to an album of your choice at least twice a day for a fortnight. 4-6 weeks is better. Studies have shown that this is most effective when the album is a new release.
Avoid all contact with photographs and film from the time, as those will dilute or overwrite any images in your head with theirs.
After at least a decade, listen to the album again. If too intense, it may be possible to acclimatise with the Greatest Hits album. Occasionally, it may have fermented into regret or bitterness, so it is advisable to repeat step 1 little and often.
The listening process cannot be skipped by the purchase of mint in box. This sterile environment will not marinate your emotions successfully. Reunion tours whereby an album is played in its entirity are also poor substitutes.
Side effects can include but are not limited to: sadness at lost youth, ill behaviour, memory lucidity, increased motivation, crying, strains from dancing, anger at acoustic cover versions, the booking of concert tickets or purchase of band t shirts. Very rare side effects include a haircut, the purchase of a guitar or a camper van.