There is no such thing as a personality that is more easily filled with the Lord.
While there are those who have less baggage than others, the cost of The Cross is the same for all. It is certainly true that being trained as a child can result in a more immediate response to the Lord, but it is not a matter of personality type.
It is a matter of The Cross.
What does it take to have a song in the heart? It requires absence of the things that stand in the way of the fullness of the Holy Spirit. Things have to go and must be dealt with over a lifetime.
There must be an affirmative decision to let the Lord deal with the toughest areas:
Having to be right
Needing to be esteemed by others
Craving security
Addiction to religion
Money
Control
Fear
Lust
The list has no end. And, in this life, no one arrives. But there are those who present themselves to the Lord and ask Him to do anything to make them like Himself. The result? The infilling of the Holy Spirit.
Soldier of The Cross, as soon as one considers himself to be humble or wise or able, he is in trouble and there is no room for the Lord. But those who just want to agree with God and be changed, are available.
No one is able to parade through everything with a toothy smile. No one has immunity to grief or heartache. But those who stand before Him in prayer and take up The Cross daily, make themselves available to the music that existed before the world was created.
Tell Him.
Aloud.
Today.