Just six months after launching it, Twitter is strongly considering killing off its Twitter #Music mobile application, according to multiple sources familiar with the matter. It is unclear what Twitter’s time frame is for ultimately ending support for Twitter #Music, as the company is currently in the midst of revamping its music department. But sources tell AllThingsD that the app’s fate is nearly sealed. Upon its April debut, Twitter #Music spiked in the App Store rankings, reaching the No. 6 slot in overall free app downloads. But in the months that followed it slipped quickly. Sources said that since the initial surge the app has seen “abysmal” numbers both in iTunes App Store downloads and engagement. As of the end of August, app analytics company Onavo places Twitter #Music at 1,672nd place in its own rankings.