Interesting. Thanks for the feedback. I've heard of a few people who had hearing, older than age 4, who knew very well all the nuances of hearing and lost their hearing due to disease. One lady who had the cochlear implant said she could recognize a Stevie Wonder song that they played to her. It sounded garbled, but she knew the song from when she had good hearing. Might I ask what the cause of your hearing loss was? Thanks. .