We too have noticed a change in H over the past few years.People do like to have music,it can make for a good atmosphere, but it seems to me that they are using loud music to compete with each other, as one turns up the volume the others follow suit.Sitting in a restaurant, which should be playing background music you hear a combination of music from all these bars, which sounds like the worst mashed hit around.
Someone I know stayed in H last year as she got a cheap deal and she echoed this view, although it hasn't put her off as she liked the surrounding area ie oludeniz,fethiye,going on boat trips etc .They are going to return this year and are staying in our place in Ovacik so they are convenient for Beach,fethiye ,fish restaurants, markets,boat trips.
I also know a family, neighbours of ours in England, whom we bumped into walking along the street in H last year and it was their first visit to Turkey.They were staying in H, were not impressed and had no plans to return to Turkey.We did our best to sell the surrounding are a but it was their last night and I think the damage was done.
We still like to go into H and walk through sometimes have a meal or drink as We have got to know people over the years but still know we can retreat " to the hills" when ever we want.Fortunate we know other places to go, but new visitors do not always venture far a field or see the whole picture and form their impression of the area from just one place.
David