11.   Period instruments have less moral force here.

12.   Scimone has resisted the trend toward period instruments.

13.   So Fostle asked Henry Z. Steinway, a former president of the company, to provide technical specifications for the period instrument.

14.   The Academy of St. Martin experimented tentatively with period instruments early on.

15.   The Baltimore comprises seven musicians who perform on period instruments.

16.   The orchestra plays on period instruments.

17.   The use of period instruments does not, of course, have to entail rigidity.

18.   There are orchestras that perform Baroque music on period instruments, the goal being to recreate the composition exactly as it sounded when it was written.

19.   With period instruments, however, the textures are cleaner.