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00060	
00070	
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00090	
00100	The INVENTIO SEPTIMA from Op.10 of Francesco Bonporti (1672-1749) 
00200	was first published in 1712.   While little is known of Bonporti's life,
00300	J. S. Bach apparently thought highly enough of him to make hand copies
00400	of a number of his Inventions for Violin and Bass.  This fact led to the
00500	erroneous inclusion of four of Bonporti's Inventions in the complete edition
00600	of Bach's works.   There seems to have been no other precedent of the
00700	use of the word "invention" as a musical title and it is likely that Bach
00800	borrowed from this source the title for his celebrated set of fifteen
00900	pieces for the harpsichord.  However the title is just about all that
01000	Bach's Inventions and Bonporti's have in common.
01200	
01300	The keyboard realization in this edition is based on the rather detailed
01400	figures found under the bass part in Bach's copy.  The upper part for
01450	the keyboard is conceived as being on somewhat more equal terms with
01550	the violin than was the custom of the early 18th century.   It may be
01600	performed on the piano as well as the harpsichord.  The optional cello
01700	part would be useful if a rather small harpsichord were used.
01900	
02000	Most of the ornamentation, dynamics and phrasing follow the Bach copy.
02100	However the performers are encouraged to use their own initiative in
02200	these areas at all times.  The "Scherzo double" does not appear in the
02250	sources.  It is an "invention" for this edition designed to exploit some of
02350	the hemiolia potenial of the original Scherzo.
02600	
02700							Leland Smith