pitchplay: 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 CentOS possible default full paths are:

/usr/bin/pitchplay - from package: genisoimage

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/pitchplay - from package: icedax

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

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