======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '62'
                                          'artist'  'B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA'
                                     'text_people'  ''
                                         'release'  'Psychedelic Promos Radio Spots Vol. 2'
                                           'title'  'B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', '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'  ''
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials'
                                             'bpm'  '121.119'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Psychedelic Promos Radio Spots Vol. 2'
'TBPM' (BPM (beats per minute))                     '121.119'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA'
'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'                        '+3.08 dB'
'TXXX:replaygain_track_peak'                        '0.488409'
'TXXX:tracknum'                                     '48'

========================== row from database ==========================
                                              'id'  483139
                                            'path'  /data/Music/Bulk/0nonmusic/PsychedelicPromosRadioSpotsVol.2/48. B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  62
                                           'genre'  nonmusic-commercials
                                        'filesize'  2498464
                                           'mtime'  1620525682
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic PsychedelicPromosRadioSpotsVol.2 48. nonmusic commercials
                                      'tag_artist'  B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA
                                     'tag_release'  Psychedelic Promos Radio Spots Vol. 2
                                       'tag_title'  B. Mitchell Reed Leather Ltd. Ad, KMET, LA, CA
                                             'bpm'  121.119
                                    'search_title'  'ad':8,9 'b':1,2 'ca':14 'kmet':10,11 'la':12,13 'leather':5 'ltd':6,7 'mitchell':3 'reed':4
                                   'search_artist'  'ad':8,9 'b':1,2 'ca':14 'kmet':10,11 'la':12,13 'leather':5 'ltd':6,7 'mitchell':3 'reed':4
                                  'search_release'  '2':7 'promos':2 'psychedelic':1 'radio':3 'spots':4 'vol':5,6
                                     'search_rest'  '0nonmusic':1 '2':3,14 '48':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':36 '2':35C,38,49 '48':40,41 'ad':8A,9A,22B,23B 'b':1A,2A,15B,16B 'ca':14A,28B 'commercials':43 'kmet':10A,11A,24B,25B 'la':12A,13A,26B,27B 'leather':5A,19B 'ltd':6A,7A,20B,21B 'mitchell':3A,17B 'nonmusic':42 'promos':30C,45 'psychedelic':29C,44 'psychedelicpromosradiospotsvol':37 'psychedelicpromosradiospotsvol2':39 'radio':31C,46 'reed':4A,18B 'spots':32C,47 'vol':33C,34C,48 'vol2':50
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           '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'  1620525681.8498194  (2021-05-09 04:01:21)
                             'size'  2498464