New midi patchset for sdl_mixer-timidity source ports.

[Holering]

Uploaded an instrument patchset for Doom here http://www.doomworld.com/idgames/index.php?id=17195 . Don't know what others may think but I was pleased with the sound and results despite sdl_mixer's difficulties using old timidity. It was fun too! They're based on propatches lite 1.61 patchset. Here's the readme.

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# May 19, 2013
#
# Put together these patches for the old Timidity that sdl_mixer uses. Was
# not happy with the quality of most patch sets (can't stand the guitars in
# EAWPATS!). Either they sound too artifical and thin, or they try to
# imitate a midi module improperly; not only that but they can be huge (like
# 30 megabytes or more!) and have bad quality. The goal of these patches
# is not to imitate a midi module (you're better off buying a midi module
# instead). I wanted a set that had a classic sound yet not weak, very rich,
# lots of detail and high quality.
#
# Had a lot of fun compiling this set of patches. Reminded me of when I had
# and AMD Interwave Philips ISA soundcard with no onboard memory (modern
# Gravis Ultrasound) with an AMD K6-III and Voodoo 4 4500 (that card had the
# best RAMDAC for razor sharp output quality). Used a Sound Blaster Awe32 for
# sounds as well. The Interwave card I used for music and it brought
# outstanding performance in the music department. It had the cleanest sound
# output and I sometimes used it's soundblaster SBOS dos driver (despite
# sound blaster mode being mono) instead of the Awe32. The Philips Interwave
# soundcard might have the cleanest output out of all ISA sound cards. I was
# thoroughly impressed by the music quality; don't know how it played music so
# well with no onboard memory. Only problems I faced in a dual sound card
# setup was playing Blackthorne as I needed emm386; had to do lots of memory
# tweaking for both sound cards to work on that game. There was also a glitch
# where the snare drums got stuck repeating endlessly during gameplay (can't
# remember how that was fixed).

# Patches are based on Pro Patches Lite 1.61 with others added from Shan's 256
# megabyte soundfont "SGM-V2.01.sf2", Gravis Ultrasound 4.41 drivers, Shom's
# 10mb patchset, one or two patches from EAWPATS, and I think only one from
# ¥Weeds¥ Nagel 8mbgmpat.zip (instrument 123 but it's possible the drumset has
# one too). Pro Patches Lite don't even work with sdl_mixer's timidity which
# is the primary reason I put this set together (drums are noticeable right
# off the bat if anyone wants to download those and see for themselves;
# Timidity++ works fine though!).
#
# Tried to tweak the instruments the best I could using Prboom-plus but
# SDL_mixer has serious problems with panning, envelopes, distortion and
# clipping. These issues don't arise with Timidity++ however. You can use
# these with Timidity++ if you want but instruments may not be at proper
# levels (though it may not be noticeable). It's probably betst if you make
# new .cfg's for Timidity++ without the amp= values and other tweaks already
# included; tweak them to your hearts content either way.

# Credits go to the authors of the previously mentioned patch sets and
# soundfonts (and whoever recorded the instruments).
#
#
# Regards,
# Holering