======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '115'
                                          'artist'  'Mad Unity'
                                     'text_people'  ''
                                         'release'  'Funky Tramway'
                                           'title'  'Disconnected Song'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['library', 'funk']"
                                     'discogstags'  "['funk / soul', 'jazz', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '144.5'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Funky Tramway'
'TBPM' (BPM (beats per minute))                     '144.5'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TCOP' (Copyright message)                          'Make Love Not War'
'TDOR' (Original release time)                      '1975'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Disconnected Song'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mad Unity'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'jazz', 'funk']
'TXXX:lastfmtags'                                   ['library', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.21 dB'
'TXXX:replaygain_track_peak'                        '0.524923'

========================== row from database ==========================
                                              'id'  1377395
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Mad Unity - Funky tramway (1975)/08-disconnected_song.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  115
                                           'genre'  funk or soul-funk
                                        'filesize'  3714738
                                           'mtime'  1620665646
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul tramway (1975) 08 disconnected_song funk or soul funk
                                      'tag_artist'  Mad Unity
                                     'tag_release'  Funky Tramway
                                       'tag_title'  Disconnected Song
                                             'bpm'  144.5
                                    'search_title'  'disconnected':1 'song':2
                                   'search_artist'  'mad':1 'unity':2
                                  'search_release'  'funky':1 'tramway':2
                                     'search_rest'  '1975':5,6 'disconnected':7 'funk':2 'or':9 'song':8 'soul':3 'swing':1 'tramway':4
                                    'search_combo'  '1975':11,12 'disconnected':1A,13 'funk':8 'funky':5C 'mad':3B 'or':15 'song':2A,14 'soul':9 'swing':7 'tramway':6C,10 'unity':4B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['library', 'funk']
                                        'tag_date'  1975
                                     'discogstags'  ['funk / soul', 'jazz', 'funk']

============================== file details ==============================
                                           'mtime'  1620665645.86187  (2021-05-10 18:54:05)
                             'size'  3714738