Is there any way to combine 2 audio file (one is audio program for education such as leadership, and the other such as classical music)
Somehow i want to easily run them both and the result is the speaker from 1st file will speech with the musical tone...

it would be great to do it using only a program running under a computer...

If i can do this, its great for learning, many times researcher prove that we can remember/learn alot better using much brain activity,
i can do similar idea, but the result still not 'collaborate', its easy of course all you need is 2 players running for each files.

i have try it by myself, i was told to say outloud and remember about 15 different words, after that im hardly to recall them,
but if i say it with using the song's tone, after i finish it, i remember the words instantly.

I hope my explanation is clear,

if such capability still not exist, u know guys this idea would generate millions of money... and i share it to u

Mix the files in any audio editor, like free Audacity. In other words, combine them into one file, and then play that single file.