======================== unified (from filesystem) ========================
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                                        'duration'  '59'
                                          'artist'  'Evergreen Battle Of The Bands Seattle, WA Concert Promo'
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                                           'title'  'Evergreen Battle Of The Bands Seattle, WA Concert Promo'
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                             'musicbrainz_albumid'  ''
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                                     'tracknumber'  ''
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                                            'date'  '1970'
                                        'comments'  ''
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                                             'bpm'  '141.216'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Psychedelic Promos Radio Spots Vol. 2'
'TBPM' (BPM (beats per minute))                     '141.216'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Evergreen Battle Of The Bands Seattle, WA Concert Promo'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Evergreen Battle Of The Bands Seattle, WA Concert Promo'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.29 dB'
'TXXX:replaygain_track_peak'                        '0.412493'
'TXXX:tracknum'                                     '22'

========================== row from database ==========================
                                              'id'  484029
                                            'path'  /data/Music/Bulk/0nonmusic/PsychedelicPromosRadioSpotsVol.2/22. Evergreen Battle Of The Bands Seattle, WA Concert Promo.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  59
                                           'genre'  nonmusic-commercials
                                        'filesize'  2389813
                                           'mtime'  1620525654
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic PsychedelicPromosRadioSpotsVol.2 22. nonmusic commercials
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                                     'tag_release'  Psychedelic Promos Radio Spots Vol. 2
                                       'tag_title'  Evergreen Battle Of The Bands Seattle, WA Concert Promo
                                             'bpm'  141.216
                                    'search_title'  'bands':5 'battle':2 'concert':9 'evergreen':1 'of':3 'promo':10 'seattle':6,7 'the':4 'wa':8
                                   'search_artist'  'bands':5 'battle':2 'concert':9 'evergreen':1 'of':3 'promo':10 'seattle':6,7 'the':4 'wa':8
                                  'search_release'  '2':7 'promos':2 'psychedelic':1 'radio':3 'spots':4 'vol':5,6
                                     'search_rest'  '0nonmusic':1 '2':3,14 '22':5,6 'commercials':8 'nonmusic':7 'promos':10 'psychedelic':9 'psychedelicpromosradiospotsvol':2 'psychedelicpromosradiospotsvol2':4 'radio':11 'spots':12 'vol':13 'vol2':15
                                    'search_combo'  '0nonmusic':28 '2':27C,30,41 '22':32,33 'bands':5A,15B 'battle':2A,12B 'commercials':35 'concert':9A,19B 'evergreen':1A,11B 'nonmusic':34 'of':3A,13B 'promo':10A,20B 'promos':22C,37 'psychedelic':21C,36 'psychedelicpromosradiospotsvol':29 'psychedelicpromosradiospotsvol2':31 'radio':23C,38 'seattle':6A,7A,16B,17B 'spots':24C,39 'the':4A,14B 'vol':25C,26C,40 'vol2':42 'wa':8A,18B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525654.1252139  (2021-05-09 04:00:54)
                             'size'  2389813