Hand in glove and In concert

Hand in glove adverb - In or by combined action or effort.

In concert and hand in glove are semantically related In some cases you can use "In concert" instead an adverb phrase "Hand in glove".

In concert adverb - With a common plan.

Hand in glove and in concert are semantically related in together topic. Sometimes you can use "Hand in glove" instead an adverb phrase "In concert", if it concerns topics such as as a group, as one.