can i connect my keyboard directly to the sound card line in without using an interface? i did it once before and it wasn't bad. please give me a help.
If you've already done it and "it wasn't bad", forgive me for asking this, but, why are you asking us ? Isn't this a question that contains it's own reply ?
Yes you can with the proper adapters! Will it sound good? Who knows, all I know is before I discovered interfaces and recording the way your suggesting here it all sounded very lo-fi.