Starting from 2011 Hsu has been working with an violin-led post-rock band 2HRs. 2HRs released an EP in 2013 and a full length album in 2014 Quasar under the label White Wabbit Records. 2HRs went on to give dozens of shows in Taiwan and was frequently interviewed by Post-Rock journals. In 2015 summer, 2HRs released a new EP named Project Debussy. It aims to deliver the strutructral beauty of classical music and different contemporary sound design techniques into an instrumental song. This song has topped the chart in Indievox (Taiwanese independant music purchase platform, equivalent to Bandcamp) for near a month.
2011年起許家維便與台灣獨立器樂樂團 2HRs 合作，在2014年中發行了第一張由小白兔唱片行發行的專輯《類星體》，並在台灣展開一連串巡演以及異業合作，並也與台北影展以及金馬影展合作譜曲。