I was encouraged to use this application by a well-meaning educator who was a friend of the developer. The strength of the program is it's attempt to facilitate the composition of avant-garde classical material. However, as a composer who has used other notation programs such as Sibelius and Finale extensively, I can't strongly enough encourage anybody searching for a notation application to take a closer look at either Sibelius and/or Finale. Both are very popular with professional composers and arrangers as well as with music students and educators. Both Finale and Sibelius offer so many features and possibilities that really deserve an in depth explanation. I encourage you to go to their respective websites, read reviews, and talk to musicians that use those programs to find out more. To put things bluntly, in my own experience, anything accomplished in Notability Pro can be accomplished much easier and more efficiently in Sibelius or Finale. Also, Finale and Sibelius offer many features that you won't find in Notability. Price-wise, if you are a educator or student, Finale and Sibelius are offered at a dramatically reduced price. If your notation needs are relatively simple, their are some quality online free notation programs out there. If you have any questions about this review, please contact me through this website or via: http://musiclearning.info