وَلَا تَجْعَلِينِي كَامْرِئٍ لَيْسَ هَمُّهُ
كَهَمِّي وَلَا يُغْنِي غَنَائِي وَمَشْهَدِي
Meaning: Do not class me with a man whose concerns are unlike mine and who neither performs what I can perform nor contributes as I do when important occasions arise.
Hamm refers to concern or purpose, ghanāʾī here means effective service or usefulness, and mashhadī my presence when it matters. Ghanāʾ in this context does not mean singing: the contrast is between purposeful capability and ineffective presence.