The binding isn’t logging that every second. You are looking at events.log. events.log is the EventBus’s log. It logs all events that get put on the EventBus (except for updates). The song progress Item is changing every second so that get’s logged to events.log. There is a way to filter out those lines from the events.log using openHAB - Filtering event logs. However, IMHO, you may as well just turn off events.log before neutering it by selectively filtering out events. Either it’s a log of the events or it’s not.
