Adagio from Sonata BWV 1001 by Johann Sebastian Bach (1685 - 1750).

Classical Guitar Solo.
Advanced Intermediate. With downloadable mp3 just for audio help.

With standard notation and Tablature (TAB). With finger position suggestions.

Pages : Five (5) pages, 4:45' min.

The Oboe Concerto in D minor, is an early 18th-century concerto attributed to the Venetian composer Alessandro Marcello. The earliest extant manuscript containing Johann Sebastian Bach's solo keyboard arrangement of the concerto, BWV 974, dates from around 1715.
Here is arrangement for Classical Guitar solo, four pages, intermediate, with tablature and downloadable mp3 just for audio help, 4:50 min.

Adagiosissimo is the 3rd movement ('Ist ein allgemeines Lamento der Freunde' - 'The Friends' Lament') of BWV 992 ('Capriccio on the Departure of the Beloved Brother'), by Johann Sebastian Bach.

Guitar Solo. Early Intermediate to intermediate.
With downloadable mp3 just for audio help.

With standard notation and Tablature (TAB).

With some finger position suggestions.

Pages : Three (3) pages.

The French Suites, BWV 812–817, are six suites which Johann Sebastian Bach wrote for the clavier (harpsichord or clavichord) between the years of 1722 and 1725.
Here is an arrangement for Classical Guitar solo, for Air (from suite no 2 BWV 813).

With standard notation and Tablature, with downloadable simple mp3 for audio help. Early intermediate. Two pages, 1:30' min.

Air on the G String from  Johann Sebastian Bach's Orchestral Suite No. 3  BWV 1068.
For Classical Guitar solo, with tablature, with downloadable mp3 for audio help, 2 pages, Intermediate, 3:35' min.
Tablature has the advantage of a very short learning curve and does not require extensive study to learn while the audio file makes the score interpreting even easier.