After upgrading to:

  $ cat /etc/lsb-release 
  DISTRIB_ID=LinuxMint
  DISTRIB_RELEASE=15
  DISTRIB_CODENAME=olivia
  DISTRIB_DESCRIPTION="Linux Mint 15 Olivia"
  $ uname -a
  Linux acini 3.8.0-25-generic #37-Ubuntu SMP 
    Thu Jun 6 20:47:30 UTC 2013 i686 i686 i686 GNU/Linux

I rebuilt timidity 2.14.0.
But now when I run it to play a midi file, it exits with an error message:
  Couldn't open output device
Running with 'strace' I saw that it tries to open
  /dev/dsp
that does not exists.

Any hint how to fix this problem?