I think it means ?--------? forte.
Subito forte: suddenly loud.
The SF-400 was built in Japan.
piano.
piano
sf, or sfz, is short for 'sforzando' which means accented, or forced.
This is difficult to answer because "upright piano" is a standard and well-defined term "Student piano" is not. In 99% of cases, a "student" piano IS an upright piano.
SF = Small Forward (in Basketball)
sf sf sf
8 sr of sf
Super fast
SF = Small Forward (in basketball)
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sf giants
Azech SF was created in 1980.
SF-kanalen was created in 2009.
SF Norge was created in 1989.
Gladsaxe SF was created in 1959.