Due to limitations, in current music streaming technologies, there are pauses between tracks.
Usually, this is not a problem when played from CD (CD players don't pause between tracks), but when streaming music on the web, gaps between tracks become more noticeable (particularly multi-movement works that were composed without pauses).
We are exploring ways to reduce this gap (including pre-buffering the next track, before the current track is finished playing), but so far, we haven't been able to solve this industry-wide problem.
We will continue to explore potential solutions as they present themselves.