Sibelius Software today announced G7, the company’s “ground-breaking” new guitar program. “Developed to provide an exciting new way for guitarists and songwriters to produce and convert guitar tablature, G7 delivers unparalleled ease-of-use and product features never available before in tab software.” The software allows guitarists of any level to create tabs, add lyrics and chord symbols and instantly create lead sheets or Piano-Vocal-Guitar arrangements. G7 (US$149) runs on Mac OS X and will ship later this quarter.