======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '62'
                                          'artist'  'Roy Orbison'
                                     'text_people'  ''
                                         'release'  '1955-1965 Box Set (Disc 7 of 7)'
                                           'title'  'Coca-Cola'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'rock', 'rockabilly', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '37'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials'
                                             'bpm'  '121.774'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '1955-1965 Box Set (Disc 7 of 7)'
'TBPM' (BPM (beats per minute))                     '121.774'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Coca-Cola'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '62000'
'TPE1' (Lead performer(s)/Soloist(s))               'Roy Orbison'
'TRCK' (Track number/Position in set)               '37'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'rock', 'rockabilly', 'oldies', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.17 dB'
'TXXX:replaygain_track_peak'                        '0.324682'

========================== row from database ==========================
                                              'id'  956231
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/Roy Orbison - Orbison CD7 - 37 - Coca-Cola (1).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  62
                                           'genre'  nonmusic-commercials
                                        'filesize'  1004607
                                           'mtime'  1620525070
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa CD7 37 (1) nonmusic commercials
                                      'tag_artist'  Roy Orbison
                                     'tag_release'  1955-1965 Box Set (Disc 7 of 7)
                                       'tag_title'  Coca-Cola
                                             'bpm'  121.774
                                    'search_title'  'coca':1 'cocacola':3 'cola':2
                                   'search_artist'  'orbison':2 'roy':1
                                  'search_release'  '1955':1 '19551965':3 '1965':2 '7':8,10 'box':4 'disc':6,7 'of':9 'set':5
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '1':10,11 '37':9 'cd7':8 'commercial':6 'commercials':13 'movietrailer':5 'nonmusic':12 'psa':7 'radio':4 'tv':3
                                    'search_combo'  '00commercials':17 '0nonmusic':16 '1':25,26 '1955':6C '19551965':8C '1965':7C '37':24 '7':13C,15C 'box':9C 'cd7':23 'coca':1A 'cocacola':3A 'cola':2A 'commercial':21 'commercials':28 'disc':11C,12C 'movietrailer':20 'nonmusic':27 'of':14C 'orbison':5B 'psa':22 'radio':19 'roy':4B 'set':10C 'tv':18
                                    'tag_tracknum'  37
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['60s', 'rock', 'rockabilly', 'oldies', 'classic rock']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525070.0824938  (2021-05-09 03:51:10)
                             'size'  1004607