Guitar playing robot, a tool assisting instrumental research

The article is about use of automatic mechanism able to play an instrument in research about play repeatability. Repeatability in this case refers to the time delays between played notes in the sequences. Subject will be discussed based on a guitar playing robot. During the research with the use of guitar playing robots, some conclusions were made that confirm, that human is unable to play twice sound sequences maintaining high repeatability . It is also proven, that use of robotic musical instrument (RMI) helps to obtain play repeatability of the sound sequences much higher than the one obtained by the human musician.