After the beginning of music production on board of SS Hope, dinner music and dance music where the first tasks. But there were other environments, where music was missing. The hallways and elevators. This music was concepted to be quiet and relaxed. Therefore the passangers used the tunes also for relaxing in private circumstances.
The question, if music in public environments is felt as audio garbage, depends on the circumstances. If there is an overflow of noise, this might be true. But it was very quiet on board, and the passengers liked all kind of diversion in their limited homebase. And at last they could suggest to switch the sound off. The majority in the general meetings could decide this.