JSON-RPC: Add playcount to "AudioLibrary.setSongDetails" and scrobble-like options

With addons like chorus for the web interface and yatse as an android application streaming from kodi to our pc/smartphone has become a real fact. I've been a few months guessing how can I simply synchronize my phone playcounts with kodi, just for having some dynamic playlists that really work despite not listening music on my media center. I found nothing.

So after starting to build my own webinterface, I realised that there's no "playcount" in "AudioLibrary.setSongDetails" method. Is there any reason for not adding this option? Because I've seen you can update the playcount on tvshows and movies.

As a second idea (for me it would be perfection), I would propose adding some extra methods to the AudioLibrary in the JSON-RPC api: AudioLibrary.scrobbleSong (maybe album too). These methods simply increase the playcount of the given element and update the lastplayed to the current time.
Thanks, if there's no clear objection about how spiff handled this I may try to do that later (I now this is a 100 times discussion but a principle validation before I loose time working on that would be great ;) )