Sri chand ji wrote 4 compositions.
1. Aarta
2. Matra
3. Guru gayatri
4. Guru Nanak Sahansar nama
These 4 compositions can be read at
https://drive.google.com/file/d/1Rq3vfW8lGJGyZnY_y_J_evhTL5trKdna/view?usp=drivesdk
In Guru gayatri, Sri chand expands the mool mantar of Guru Nanak Dev ji from the starting to 'Nanak hosi bhi sach'