With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Hobbit is only a romance novel.
text_B: A transposing instrument is a musical instrument whose music is notated at a pitch different from the pitch that actually sounds -LRB- concert pitch -RRB- .. musical instrument. musical instrument. pitch. pitch ( music ). concert pitch. concert pitch. Playing a written C on a transposing instrument produces a pitch other than C , and that pitch identifies the interval of transposition when describing the instrument .. pitch. pitch ( music ). interval. interval ( music ). transposition. transposition ( music ). For example , a written C on a B clarinet sounds a concert B.. clarinet. clarinet. Rather than a property of the instrument , the transposition is a convention of music notation -- however , instruments whose music is typically notated in this way are called transposing instruments .. transposition. transposition ( music ). music notation. music notation. As transposing instruments is a notation convention , the issue of transposition is mainly an issue for genres of music which use sheet music , such as classical music and jazz -LRB- while jazz is an improvisation-based music , professional players are still expected to be able to read lead sheets and big band sheet music -RRB- .. transposition. transposition ( music ). sheet music. sheet music. classical music. classical music. jazz. jazz. improvisation. jazz improvisation. big band. big band. For some instruments -LRB- e.g. , the piccolo or the double bass -RRB- , the sounding pitch is still a C , but in a different octave ; these instruments are said to transpose `` at the octave '' .. pitch. pitch ( music ). piccolo. piccolo. double bass. double bass. octave. octave
not_related.