You don't want to start relying on a plugin or program to learn pitch! Don't be in such a hurry to do a beat that you don't take the time to LEARN. C,D,E,F,G,A,B (7 NOTES) the wrong note will stick out like a soar thumb. Practice now will make you a better beat maker/producer later. If you're trying to play a bass line over a sample try and find the key with the black keys....there are only 5 per scale. It's really not as hard as you might think!
P.S. All black keys sound good together...it's hard to go wrong with them!