======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '36'
                                          'artist'  "The McCoy's"
                                     'text_people'  ''
                                         'release'  'Psychedelic Promos Radio Spots Vol. 1'
                                           'title'  'Heart Association Spot'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'classic rock', 'oldies', 'rock', 'garage rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials'
                                             'bpm'  '104.822'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Psychedelic Promos Radio Spots Vol. 1'
'TBPM' (BPM (beats per minute))                     '104.822'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Heart Association Spot'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               "The McCoy's"
'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', 'classic rock', 'oldies', 'rock', 'garage rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.80 dB'
'TXXX:replaygain_track_peak'                        '0.459330'
'TXXX:tracknum'                                     '68'

========================== row from database ==========================
                                              'id'  1506187
                                            'path'  /data/Music/Bulk/0nonmusic/PsychedelicPromosRadioSpotsVol.1/68. The McCoy_s - Heart Association Spot.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  36
                                           'genre'  nonmusic-commercials
                                        'filesize'  1452510
                                           'mtime'  1620525627
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic PsychedelicPromosRadioSpotsVol.1 68. McCoy_s nonmusic commercials
                                      'tag_artist'  The McCoy's
                                     'tag_release'  Psychedelic Promos Radio Spots Vol. 1
                                       'tag_title'  Heart Association Spot
                                             'bpm'  104.822
                                    'search_title'  'association':2 'heart':1 'spot':3
                                   'search_artist'  'coy':6 'coys':8 'mc':5 'mccoy':2 'mccoys':4 's':3,7 'the':1
                                  'search_release'  '1':7 'promos':2 'psychedelic':1 'radio':3 'spots':4 'vol':5,6
                                     'search_rest'  '0nonmusic':1 '1':3,16 '68':5,6 'commercials':10 'coy':19 'mc':18 'mccoy':7 'nonmusic':9 'promos':12 'psychedelic':11 'psychedelicpromosradiospotsvol':2 'psychedelicpromosradiospotsvol1':4 'radio':13 's':8,20 'spots':14 'vol':15 'vol1':17
                                    'search_combo'  '0nonmusic':19 '1':18C,21,34 '68':23,24 'association':2A 'commercials':28 'coy':9B,37 'coys':11B 'heart':1A 'mc':8B,36 'mccoy':5B,25 'mccoys':7B 'nonmusic':27 'promos':13C,30 'psychedelic':12C,29 'psychedelicpromosradiospotsvol':20 'psychedelicpromosradiospotsvol1':22 'radio':14C,31 's':6B,10B,26,38 'spot':3A 'spots':15C,32 'the':4B 'vol':16C,17C,33 'vol1':35
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['60s', 'classic rock', 'oldies', 'rock', 'garage rock']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525627.3317063  (2021-05-09 04:00:27)
                             'size'  1452510