csbeats: 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/csbeats - from package: csound

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

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