When Arthur causes trouble, Sam kills him without a qualm. Credits adapted from the liner notes of "Qualm". "Qualm" received positive reviews from music critics. On 3 August 2018 the Hamburg-based Techno producer and DJ released her album "Qualm". In 2016, they finally released their first, full-length album, "Qualm". Lucene is also used in QuALM a question answering system for Wikipedia.