songwrite: command not found

Have You tried accessing the binary with the full path?

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

[root@server ~]# echo $PATH

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/songwrite - from package: songwrite

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