A component for Higher Order Ambisonics, HOA, composition for an HOA decoder, the component for HOA composition being configured to: - receive an HOA representation of predominant sound components ĉ PS, n ( k - 1 ) obtained from a compressed HOA signal, wherein n denotes an index of channels (n = 1, ..., O) , wherein O = (N+1) 2 with N being the order of the compressed HOA signal and k is a frame index; - receive a further HOA representation C ̃ ^ AMB , n k − 1 obtained from the compressed HOA signal, wherein n denotes the index of channels (n = 1 , ..., O) and k is the frame index; - receive a layered mode indication LMF D indicating whether the compressed HOA signal comprises at least two layers, the layered mode indication LMF D being received via a mode indication bit in an access unit of a respective bit stream; - add the HOA representation of predominant sound components to the further HOA representation, wherein coefficients of the HOA representation of the predominant sound signals and corresponding coefficients of the further HOA representation are added, to obtain a decompressed HOA signal Ĉ( k - 1 ), wherein, if the layered mode indication LMF D indicates a layered mode with at least two layers, the component for HOA composition adds the HOA representations according to: c ^ n k − 1 = { c ̃ ^ AMB , n k − 1 for 1 ≤ n ≤ O MIN c ^ n k − 1 = c ^ PS , n k − 1 + c ̃ ^ AMB , n k − 1 , for O MIN + 1 ≤ n ≤ O , wherein O MIN = ( N MIN + 1) 2 and N MIN is a predefined integer value, wherein the component is further configured to, if the layered mode indication LMF D indicates a single-layer mode, add the HOA representations according to: ĉ n ( k - 1) = ĉ PS , n ( k - 1) + ĉ AMB, n ( k - 1) for 1 ≤ n ≤ 0. - receive an HOA representation of predominant sound components ĉ PS, n ( k - 1 ) obtained from a compressed HOA signal, wherein n denotes an index of channels (n = 1, ..., O) , wherein O = (N+1) 2 with N being the order of the compressed HOA signal and k is a frame index; - receive a further HOA representation C ̃ ^ AMB , n k − 1 obtained from the compressed HOA signal, wherein n denotes the index of channels (n = 1 , ..., O) and k is the frame index; - receive a layered mode indication LMF D indicating whether the compressed HOA signal comprises at least two layers, the layered mode indication LMF D being received via a mode indication bit in an access unit of a respective bit stream; - add the HOA representation of predominant sound components to the further HOA representation, wherein coefficients of the HOA representation of the predominant sound signals and corresponding coefficients of the further HOA representation are added, to obtain a decompressed HOA signal Ĉ( k - 1 ), wherein, if the layered mode indication LMF D indicates a layered mode with at least two layers, the component for HOA composition adds the HOA representations according to: c ^ n k − 1 = { c ̃ ^ AMB , n k − 1 for 1 ≤ n ≤ O MIN c ^ n k − 1 = c ^ PS , n k − 1 + c ̃ ^ AMB , n k − 1 , for O MIN + 1 ≤ n ≤ O , wherein O MIN = ( N MIN + 1) 2 and N MIN is a predefined integer value, wherein the component is further configured to, if the layered mode indication LMF D indicates a single-layer mode, add the HOA representations according to: ĉ n ( k - 1) = ĉ PS , n ( k - 1) + ĉ AMB, n ( k - 1) for 1 ≤ n ≤ 0. <EOS>