Jakub,
Being that I think songwriters and lyricists could potentially benefit from the creative support, I think this code is very useful, and was wondering about some other changes.
Having altered the code, and followed your suggestions, I've learned how to use it to a point where I feel that it is something which could be completed with an improved GUI, and maybe one or two more functions in regards to the songs.txt and unique words.txt files.
The two changes I think the program could use:
A textbox, with a button, to edit the songs.txt file.
The example songs.txt could still be used.
A textbox, with a button, to edit the unique words.txt file. The example unique words would still also probably be used, to show how it is to be properly edited without punctuation or spaces.
Or maybe a "help" textbox, to say how to edit each txt file.
With these two changes, I think the program would be greatly improved. Do you have the time to work on the forms, and edit the GUI to make these changes..? I am only learning code presently, but wanting to speed up this project, don't really know where to start without your suggestions or perhaps even wondering if you could make these changes yourself..? I see no other changes needed to the program, and also am quite interested in knowing about its future, or where it might be headed as far as being shared with other people, and artists who may find it useful. ?
If, you can make the changes, let me know, and if not, please at least help assist me perhaps in making them myself..?
(I have spoken with other programmers involved in Markov-related projects, and see that some of their projects are now defunct, and no longer being given much attention. I am not sure about the state of your project, but as far as its future, license, domain, sharing, or what "I" could do with this program myself, as far as sharing it with other people, I would be interested to know what you have to say about it, since I like it so much I, and enjoy using it so much.)
Let me know.
-Brendan