I’ve been using BIAB live for several years, now, with guitar and vocals. Often, I have a woodwind player and other vocalists join in, as well. I also use arrangers on other gigs. The BIAB program is much less expensive than an arranger, even though you must purchase a computer (laptop in my case). It offers so many styles, it’s hard to keep up with them. If a person knows chord changes, you can create a full arrangement in a matter of minutes. I like being able to change keys and the number of choruses on the spot to accommodate other musicians. The real styles (real audio files) sound authentic through a good sound system. With a little effort, you can create hundreds of songs ready to go at the push of a button. I’ve got my folders of tunes organized by country, jazz, pop, rock, standards, Broadway/show, holiday songs, waltzes, tangos------you name it. I’m not giving up arrangers; however, BIAB is a great tool for song writing, practice, and live performance.