Slow-fi & better quality.
The first time I ran across the "slow-fi" (i.e.) - a buzz word; when the batteries got drained
in the boom box". Hence- the tape would play; at a slower speed.
And a lot of the time; we liked it. [but we never really had control of it] (i.e.) speed
When- we got new batteries; of course the speed: changed. And it sounded fast for a while...
