Notice that among the pairs of nearby musical notes (the main 7 ones, which are white keys on the piano) is between E and F, because they are not separated by a black key. The other pairs of notes make 2 tone interval, but E-F make 1-tone interval. This translates to the major disagreement between the fight theme of solar plexus (3) and peace theme of the heart (4). This is the major transition that the humanity makes at this age: from fight to peace. Anatomically, the solar plexus area (3) is separated from the heart (4) by a diaphragm, which corresponds to the veil separating our reality from the higher dimensions and the spirit world. The old humanity struggles in the vibrations and lessons of the lower 3 chakras: survival, disease (1), TV, sales, uninspired communications, mass media, social networks (2), war, hierarchy, anger, fight, fear, suffering (3) and the higher dimensions, aliens, spirits and God are invisible to the old humanity because of the veil. To awaken to the higher dimensions, the humans need to raise their (our) vibration one by one, transcend the veil symbolized by the anatomical diaphragm and move into the heart (4) which is beyond the veil, and to the other higher chakras - 5 - 6 - 7. This will transform war (3) into peace (4), competition (3) into cooperation (4), hate (3) into love (4), fight (3) into service (4), uninspired chat (2) into poetry (5), fear-based thinking (3) into inspirational creativity and visionary insight (6), fear-based religion (3) into sacred divine spirituality (7).
You also may notice that odd- numbered chakras 1-3-5-7 have a somewhat more masculine quality - they just a bit more proactive and forward going. They are more about labor and giving.
The even numbered chakras 2-4-6 are just a bit more feminine - they are about receiving, accepting, analyzing and watching. Also these chakras are about sex, love and visual sexual beauty.
There are also important resonances between pairs of chakras separated by 1 or more chakras in between.
Chakras 1 and 3 are have a common trait of active labor and physicality. Both are about force. In 1st chakra activity it is simple physical labor but the physical laborers of 1st chakra level lack courage, sense of duty and self-sacrifice. When they gain that, they raise to the 3rd chakra vibration.
Jumping up in vibration is not easy. It takes time, effort and learning to grow the spirit to handle a higher vibration. If the spirit has not grown, the individual is excessively strained by the higher vibrational activities. A physical worker of 1st chakra level can not just be appointed as a manager, a ruler, a soldier or an officer (3rd chakra). He has first to develop skills and spiritual qualities which would give him strength, wisdom and protection at such challenging jobs.
Another interesting resonation and synergy is 4-6, a heart - mind connection, green - indigo, F - A musical notes. Many modern people have their heart chakra blocked because of the trauma of the modern upbringing and life. This makes their mind dominate the balance of heart - mind. Yet, it is very important to have heart and mind to be in balance and equally active because heart intelligence is beyond the veil and is very wise. The mind without heart intelligence is very limited and is overpowered by ego, fear and anger. Reconnecting to heart intelligence restores the balance and enlightens the mind making it driven by both spiritual guidance and healthy ego. The main work towards reconnecting with heart intelligence includes receiving and giving Reiki energy healing, development of empathy, development of positive attitude, meditation, prayer, dance, yoga and healing childhood and adult traumas via reminiscence, retrospection forgiveness and emotional work. Very helpful for reconnecting with the heart is creative writing, writing autobiography, emotional painting and dancing - these activities include hands which are driven by the heart chakra and inspirational component of the mind.
Next important resonance is 5 - 7, between throat and crown, sound and Divine, blue and purple, musical notes G and B. This resonance is best expressed via in chanting, affirmations, prayers and poetry which use sound to reach Divinity.
There is also a resonation between 2 and 5, sacral (2) and throat (5) chakras, orange and blue, notes D and G. This resonation is about communication. Both chakras are involved with communication. Unfortunately, the bigger part of the humanity are in early stages of their spirit development and many are still learning the lessons of the first 2 chakras. Physical laborers (1) are just starting to learn communication (2). Television and twitter are of great assistance for them as these are good for the beginners. Unfortunately the majority of the humanity are stuck in these lessons and are not choosing to advance higher. The meaningless chat of television, conversations and commercials belongs to 2nd chakra vibration. Yet, it is possible to shift to a spiritually meaningful communication of the 5th chakra. These higher level communications include spiritually inspired music, movies, art and person to person conversations. Many people have a good understanding which sounds are of high spiritual vibration and which are of low. Each individual chooses the sound corresponding to their vibration. Thus many individual would turn off poetry, classical music and switch to something easy with a low grade humor or soap opera drama. By the way, cursing is usually of low vibration, mainly of 1st, 2nd chakras and even below.
Observe the language and vibration of your communication with others and yourself. Notice, when you are shifting up and when you are shifting down. Make a conscious effort of shifting up your communications while still being true to yourself. Of course it doesn't make sense to sing opera instead of cursing, but lifting the moods up is usually a great idea. Sometimes even cursing is healing, since 1st chakra is also responsible for health, but much more often the tone of true kindness are most uplifting. Be at harmony and bring about harmony to others.
If it drains you to keep uplifting others, keep in mind that you are not responsible for happiness of others, it is their choice in which vibration to stay, but you can off them example of your high vibration, sharing light and commitment to selfless service.
Pay a special attention to the art of equanimity - the art of keeping your composure no matter what. It takes much self training and self restraint to keep your composure at all times and situations, but it serves you and others in keeping the overall vibration high. Learn to heal your negative emotions without spilling them on others, if you can. Equanimity one of the most exact measures of your spiritual development. If you are nice with strangers but still explode at your mother or child, or even a parking officer, that is not good enough.