There was a time.. late 1990s
We could download massive libraries of midi songs on slow dial up from dodgy musicians sites..
and I could import them into my Yamaha QY70 pocket sized [well big pocket]
'swiss army knife' multi track midi file sequencer
and advanced XG general midi sounds player.

Last time I got it out the memory battery needed replacing, but it still worked well as a sounds module...
It's one item of kit I will use more when my Laptop DAW is fully set up...

Just hinting, the QY70 and later more advanced QY100 are contenders for ebaying...