Same as Detlof above + lieder in mono. An old Dieskau is fine: can I visualise Mr Dieskau, his physical size, & the characteristics of his voice?
For the adventurous dealer, a tinge of Mahler 2nd symphony (1st & last parts) can also serve very well.
For the adventurous dealer, a tinge of Mahler 2nd symphony (1st & last parts) can also serve very well.