======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '31'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Commercial'
                                           'title'  'Columbia TV Service Company'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '145.580'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Commercial'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Columbia TV Service Company'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Mp3gain_minmax'                               '071,204'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:Sortunder'                                    'commercials'
'TXXX:other'                                        '001'
'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'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.39 dB'
'TXXX:replaygain_track_peak'                        '0.347765'

========================== row from database ==========================
                                              'id'  958861
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/Columbia_TV_Service_Company_0001.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  31
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  510312
                                           'mtime'  1620524848
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa Columbia_TV_Service_Company_0001 nonmusic commercials;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  Commercial
                                       'tag_title'  Columbia TV Service Company
                                             'bpm'  145.58
                                    'search_title'  'columbia':1 'company':4 'service':3 'tv':2
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'commercial':1
                                     'search_rest'  '0001':12 '00commercials':2 '0nonmusic':1 'columbia':8 'commercial':6 'commercials':14,16 'company':11 'mor':19 'movietrailer':5 'nonmusic':13 'pl':18 'psa':7 'radio':4 'service':10 'set':15,17 'tv':3,9
                                    'search_combo'  '0001':19 '00commercials':9 '0nonmusic':8 'columbia':1A,15 'commercial':7C,13 'commercials':21,23 'company':4A,18 'mor':26 'movietrailer':12 'nonmusic':20 'pl':25 'psa':14 'radio':11 'service':3A,17 'set':22,24 'tv':2A,10,16 'unknown':5B,6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524847.5744233  (2021-05-09 03:47:27)
                             'size'  510312