eventsource: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/eventsource - from package: music-bin

You may install the required package with command apt-get install {package}

Error in other languages:
eventsource: bevel nie gevind nie
eventsource: comandă negăsită
eventsource: comando não encontrado
eventsource: commande introuvable
eventsource: command not found
eventsource: käsku ei ole
eventsource: không tìm thấy lệnh
eventsource: komanda nerasta
eventsource: Kommando nicht gefunden.
eventsource: kommandot finns inte
eventsource: komut yok
eventsource: nie znaleziono polecenia
eventsource: níor aimsíodh an t-ordú
eventsource: no se encontró la orden
eventsource: no s'ha trobat l'ordre
eventsource: opdracht niet gevonden
eventsource: parancs nem található
eventsource: perintah tidak ditemukan
eventsource: príkaz nenájdený
eventsource: příkaz nenalezen
eventsource: команда не найдена
eventsource: командата не е открита
eventsource: 命令找不到
eventsource: コマンドが見つかりません