alsaplayer: 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/alsaplayer - from package: alsaplayer-common

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

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