Anyone who has every test out a decent Hi-Fi set-up in a shop or other location will have come across the DALI sampler CD that contains excellently produced tracks of all different genres, tastes or styles. DALI, the Danish loudspeaker company, has announced the launch of DALI CD 4, that contains music as diverse as Eva Cassidy, Hans Zimmer and He Xiu Tan (He’s not on Tidal?). So it is eyes open and see if you can track this treasurer trove of a CD.