Basicamente, a resposta curta é "Sim" e o complemento dessa resposta será "Use o rhythmbox-clientcomando de um terminal para controlar seu Rhythmbox atual em execução, se ele ainda não estiver carregado, a primeira instância de seus comandos o chamará".
Por exemplo: rhythmbox-client --playfará com que a sessão atual do Rhythmbox comece a tocar a música atual (ou a primeira música da lista). Se o Rhythmbox estiver fechado, ele será aberto primeiro para iniciar a reprodução.
Informações adicionais sobre o rhythmbox-cliente seu uso podem ser alcançadas na página do manual rhythmbox-client . Coloco aqui uma parte da página de manual apenas para referência.
NAME
rhythmbox-client - controls a running instance of rhythmbox
SYNOPSIS
rhythmbox-client [option...][file...]
DESCRIPTION
rhythmbox-client is a tool for controlling an already running instance
of rhythmbox. It's useful for remote control scripting, adding
specific files to the library from the shell, or printing details of
what's playing. It also has an interactive mode, useful for controlling
playback remotely via ssh. Any files specified after the option
arguments will be added to the library. If the --enqueue option is
given, the files will also be added to the play queue.
OPTIONS
-?,--help
Show help options
--debug
Enable debug output
--no-start
Do not start a new instance of rhythmbox
--quit Quit rhythmbox
-i,--interactive
Start interactive mode --no-present Don't present an existing
rhythmbox window
--next Jump to next song
--previous
Jump to previous song
--play Resume playback if currently paused
--pause
Pause playback if currently playing
--play-pause
Toggle play/pause mode
--stop Stop playback if currently playing
--play-uri=URI
Play a specified URI, importing it if necessary
--enqueue
Add specified tracks already in the library to the play queue
--clear-queue
Empty the play queue before adding new tracks
--print-playing
Print the title and artist of the playing song
--print-playing-format=format
Print formatted details of the song (see FORMAT OPTIONS below).
--set-volume
Set the playback volume
--volume-up
Increase the playback volume
--volume-down
Decrease the playback volume
--print-volume
Print the current playback volume
--select-source=URI
Select the source corresponding to a URI (device or mount point)
--activate-source=URI
Select the source corresponding to a URI (device or mount point)
and start playing from it if not already playing.
--play-source=URI
Select the source corresponding to a URI (device or mount point)
and start playing from it.
FORMAT OPTIONS
%at album title
%aa album artist
%aA album artist (lowercase)
%as album artist sortname
%aS album artist sortname (lowercase)
%ay album year
%ag album genre
%aG album genre (lowercase)
%an album disc number
%aN album disc number, zero padded
%st stream title
%tn track number (i.e 8)
%tN track number, zero padded (i.e 08)
%tt track title
%ta track artist
%tA track artist (lowercase)
%ts track artist sortname
%tS track artist sortname (lowercase)
%td track duration
%te track elapsed time
Variables can be combined using quotes. For example "%tn %aa %tt", will
print the track number followed by the artist and the title of the
track.
AUTHOR
This manual page was written by Sven Arvidsson <sa@whiz.se>, for the
Debian system (but may be used by others).
Editar
Eu tenho algum interesse nesse assunto, então fiz um teste com o próximo comando:
dbus-send --print-reply --dest=org.mpris.MediaPlayer2.rhythmbox /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Seek int64:60000000
A partir da resposta original postada aqui. O que de fato funciona para a tarefa de procurar a música atual, (com base no comentário do autor).
Boa sorte!