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A small welding work for my table

I hope you are doing well. I am reaching out to request a modification to my study table, which has certain parts made of aluminium tubes. As shown in the attached image, my table has a sliding tray designed for a computer keyboard. However, I would like to use this space for my musical keyboard instead. The issue is that the gap is too small for my instrument to slide in properly. Would it be possible to adjust or modify the aluminium tube structure to create more space? I am open to any suggestions on how to achieve this while maintaining the table's stability.