Band's transformation through the years

Band's song initially was just Love songs . very simple. very light instrumentation. words would stick out as being written by amateurs. They were very skinny. played simple chord progressions. They encouraged each other to sing and perform. they were very happy amongst themselves. later on their music matured. used complicated harmonies. songs with double meanings. when they become drug addicts , their songs were just north. they became hippy style badasses. most of the time they snorted drugs and delved into their lair. after one unfortunate incident, band went into recluse. maybe to meditation. their they found inner peace. their song matured more to 'Let it be' style motivational songs. about life etc/