======================== unified (from filesystem) ========================
                                         'bitrate'  '24.0'
                                        'duration'  '242'
                                          'artist'  'Helen Gurley Brown'
                                     'text_people'  ''
                                         'release'  'Music for Maniacs'
                                           'title'  'HGB1'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-1', 'q-drums-1', 'q-other-1', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['spoken word']"
                                     'discogstags'  "['non-music', 'spoken word']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '136.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '136.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'HGB1'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Helen Gurley Brown'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['non-music', 'spoken word']
'TXXX:lastfmtags'                                   'spoken word'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.26 dB'
'TXXX:replaygain_track_peak'                        '0.309632'

========================== row from database ==========================
                                              'id'  648977
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/HGB1.mp3
                                         'working'  None
                                         'bitrate'  24
                                    'duration_sec'  242
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  730243
                                           'mtime'  1636916328
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs electronic experimental oddness
                                      'tag_artist'  Helen Gurley Brown
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  HGB1
                                             'bpm'  136.0
                                    'search_title'  'hgb1':1
                                   'search_artist'  'brown':3 'gurley':2 'helen':1
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'electronic':3 'experimental':4 'maniacs':2 'music':1 'oddness':5
                                    'search_combo'  'brown':4B 'electronic':10 'experimental':11 'for':6C 'gurley':3B 'helen':2B 'hgb1':1A 'maniacs':7C,9 'music':5C,8 'oddness':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['spoken word']
                                        'tag_date'  2010
                                     'discogstags'  ['non-music', 'spoken word']

============================== file details ==============================
                                           'mtime'  1636916327.7012002  (2021-11-14 19:58:47)
                             'size'  730243