Steve  Harder raised,  among  other questions, one concerning the
legality of inputting a  QRS roll into a MIDI database.  Assuming
that he  has bought a copy of  the QRS roll and  is inputting the
music only for  his  own use,  I would think that he  is  on safe
ground morally and legally: QRS has not been deprived of  a  sale
that  it would have otherwise made  and Steve  is  not exploiting
QRS's work for his own profit.

If  I bought a copy of somebody's DOS manual and had  it rebound,
interleaved with blank pages for my  use  in making notes on  the
text, I would not  be depriving the text's author or publisher of
the fruits of their labor since I purchased their text.  Likewise
if  I bought a book of poems and recorded someone's recitation of
them for  my  own private delectation, I would not  be defrauding
the copyright holder; I might be doing so, however, if I made the
recording from  a BORROWED text,  since  that  would deprive  the
author of  one potential sale.   The  "fair  use" section of  the
copyright law  allows certain uses  of copyrighted material under
certain conditions.

Warning: this advice is worth only what  you  are paying for  it.