======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '56'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'no title'
                                           'title'  "The Dependables built by Dodge ('63)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '39'
                                      'tracktotal'  '98'
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '146.000'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'no title'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         "The Dependables built by Dodge ('63)"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '39/98'
'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'                                       '4'
'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'                        '+0.27 dB'
'TXXX:replaygain_track_peak'                        '0.532390'

========================== row from database ==========================
                                              'id'  1502171
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/car ads and PSAs/car ads and PSAs - 39. the dependables built by dodge (_63).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  56
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  906929
                                           'mtime'  1620525202
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa car ads and PSAs car ads and PSAs 39. the dependables dodge (_63) nonmusic commercials;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  no title
                                       'tag_title'  The Dependables built by Dodge ('63)
                                             'bpm'  146.0
                                    'search_title'  '63':6,7 'built':3 'by':4 'dependables':2 'dodge':5 'the':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'no':1 'title':2
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '39':12,13 '63':17,18 'ads':9 'and':10 'car':8 'commercial':6 'commercials':20,22 'dependables':15 'dodge':16 'mor':25 'movietrailer':5 'nonmusic':19 'pl':24 'psa':7 'psas':11 'radio':4 'set':21,23 'the':14 'tv':3
                                    'search_combo'  '00commercials':13 '0nonmusic':12 '39':23,24 '63':6A,7A,28,29 'ads':20 'and':21 'built':3A 'by':4A 'car':19 'commercial':17 'commercials':31,33 'dependables':2A,26 'dodge':5A,27 'mor':36 'movietrailer':16 'no':10C 'nonmusic':30 'pl':35 'psa':18 'psas':22 'radio':15 'set':32,34 'the':1A,25 'title':11C 'tv':14 'unknown':8B,9B
                                    'tag_tracknum'  39
                                      '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-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525201.9665418  (2021-05-09 03:53:21)
                             'size'  906929