On the relationship between the 5 elements and 7 chakras

After having recently completed the series of compositions for the 5 elements (earth, water, fire, air and aether), I realized that there's a connection to the 7 chakras.

1. Muladhara (मूलाधार) - Earth (saj dhaj dhara aaj - Raga Saraswati)
2. Swadhishtana (स्वाधिष्ठान) - Water (savan ghanana ghanana - Raga Miyaa-ki-Malhaar)
3. Manipura (मणिपूर)- Fire (dani tadani dani - Raga Gujri Todi)
4. Anahata (अनाहत)- Air (aaj pavan karat shor - Raga Madhukauns)
5. Vishuddha (विशुद्ध) 6. Ajna (आज्ञा) and 7. Sahastrara (सहस्रार)- Aether (Om mani kamal vyom - Raga Malkauns)