The purpose of this REALBOOK -to play and study jazz standarts...also for developed musicians as a brief encyclopedia. A number of REALBOOKS exists, but a "sourse" is one..."handmade" first ...written before the age of printed realbooks.I shall place this first in my site...see for it... The BAND IN a BOX (BB) REALBOOK includes the most popular tunes. They play in BAND IN BOX (BB) /any version/. You can: - start any song - change tempo,style,rhythm,tune,chords,number of chorusrs,instruments... ect -play in different styles of improvisation: Benson,Garner,Armstrong,Shearing...and...even generate solo(sometimes it seems not bad). -print notes ,chords ,words with high quality BB font . Very useful for soloists and vocalists. Very useful for" altered key" instruments users. I did it in such way: No intro....one chorus..harmonically true step to another chorus...end/ no coda/. So you can handly insert any number of choruses and they " connected good". You can create standart MIDI file of any song. System requirement. Any PC with soundcard with GM/GS/XG sounds or installed softsynthesator / Roland VSC...Yamaha SXG...Reality with GM bank...ect/. All about BAND IN a BOX (BB) is on www.pgmusic.com. Please send me any new jazz standarts developsssss...BB files are small...good for e-mailing... Vladimir Lukashenya.