ALSA lib pcm_dsnoop.c:566:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:999:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
ALSA lib pcm_a52.c:1001:(_snd_pcm_a52_open) a52 is only for playback
ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
ALSA lib pcm_dmix.c:999:(snd_pcm_dmix_open) unable to open slave
FluidSynth runtime version 2.3.3
Copyright (C) 2000-2023 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of Creative Technology Ltd.

fluidsynth: prog	0	0	0
fluidsynth: prog	1	0	0
fluidsynth: prog	2	0	0
fluidsynth: prog	3	0	0
fluidsynth: prog	4	0	0
fluidsynth: prog	5	0	0
fluidsynth: prog	6	0	0
fluidsynth: prog	7	0	0
fluidsynth: prog	8	0	0
fluidsynth: prog	9	128	0
fluidsynth: prog	10	0	0
fluidsynth: prog	11	0	0
fluidsynth: prog	12	0	0
fluidsynth: prog	13	0	0
fluidsynth: prog	14	0	0
fluidsynth: prog	15	0	0
fluidsynth: debug: Using 'alsa_seq' midi driver
fluidsynth: debug: Using 'alsa' audio driver
Type 'help' for help topics. 
-------------------------------------------------------------------------
# aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 0: ALC233 Analog [ALC233 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
  
  ------------------------------------------------------------------------
  # aplay -L
  
  default
    Default ALSA Output (currently PipeWire Media Server)
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 1
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 2
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 3
    HDMI Audio Output
usbstream:CARD=NVidia
    HDA NVidia
    USB Stream Output
sysdefault:CARD=Generic
    HD-Audio Generic, ALC233 Analog
    Default Audio Device
front:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    Front output / input
surround21:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Generic,DEV=0
    HD-Audio Generic, ALC233 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
usbstream:CARD=Generic
    HD-Audio Generic
 -----------------------------------------------------------------------
 # ps aux | grep fluidsynth
 
user      3129  5.8  1.1 1147964 176588 ?      SLsl 14:40   0:08 /usr/bin/fluidsynth -is /usr/share/soundfonts/FluidR3_GM.sf2
user      3832  3.1  0.3 700176 58028 ?        Sl   14:41   0:02 /usr/bin/gedit /home/user/Templates/fluidsynth.txt
user      4359  0.0  0.0   8028  2560 pts/0    S+   14:42   0:00 grep --color=auto fluidsynth