Yesterday we found out of the possibility of a keyboard being added to the next installment of Rock Band. Today we find out some more details from what is said to be an inside source. According to this source EA is planning on adding another instrument, but its not really a keyboard but a Keytar. Along with this rumor is the addition of a Pro Mode, “that will require proper technique, and may lead to actual skills on guitar and bass.”  EA is holding a presser event the day before the start of E3 2010. If these rumors are true, I am sure the will be reveled at that event.