"""Backend utility functions."""

from .music_theory import (
    SEMITONE_MAP,
    KEY_NAMES,
    KEY_DISPLAY_MAP,
    ALL_KEYS_WITH_MODES,
    semitones_between,
    transpose_key,
)
from .audio_utils import (
    to_mono,
    to_float32,
    normalize,
    pad_or_trim,
    encode_wav_to_bytes,
)

__all__ = [
    "SEMITONE_MAP",
    "KEY_NAMES",
    "KEY_DISPLAY_MAP",
    "ALL_KEYS_WITH_MODES",
    "semitones_between",
    "transpose_key",
    "to_mono",
    "to_float32",
    "normalize",
    "pad_or_trim",
    "encode_wav_to_bytes",
]