Some album rights-holders restrict certain track releases only to be downloaded for purchase in Qobuz Store. These restrictions are down to the right holders’ sole discretion. Such restricted tracks are displayed as - Sample in the Qobuz App, allowing stream only 30-second segments.
The right holders restrict these Sample music tracks from streaming or displaying on Bluesound or other third-party Players.
For further information, refer to the Qobuz Support website.