======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '230'
                                          'artist'  'Opera Multi Steel'
                                     'text_people'  ''
                                         'release'  'Insane Music for Insane People Vol. 9'
                                           'title'  'Un Froid Seul'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-1', 'q-drums-3', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['coldwave', 'post-punk', 'darkwave', 'french', 'gothic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-mor'
                                             'bpm'  '107.4'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Insane Music for Insane People Vol. 9'
'TBPM' (BPM (beats per minute))                     '107.4'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-mor']
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Un Froid Seul'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Opera Multi Steel'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['coldwave', 'post-punk', 'darkwave', 'french', 'gothic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.520969'
'TXXX:tracknum'                                     'B6'

========================== row from database ==========================
                                              'id'  1372386
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Bill Pritchard - Insane Music For Insane People Vol. 9 (Insane Music, 1986) [320k]/B6 Opera Multi Steel - Un Froid Seul.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  230
                                           'genre'  electronic-unsorted;set-pl-mor
                                        'filesize'  9240459
                                           'mtime'  1621695817
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Bill Pritchard For (Insane Music, 1986) [320k] B6 electronic unsorted;set mor
                                      'tag_artist'  Opera Multi Steel
                                     'tag_release'  Insane Music for Insane People Vol. 9
                                       'tag_title'  Un Froid Seul
                                             'bpm'  107.4
                                    'search_title'  'froid':2 'seul':3 'un':1
                                   'search_artist'  'multi':2 'opera':1 'steel':3
                                  'search_release'  '9':7 'for':3 'insane':1 'music':2 'people':4 'vol':5,6
                                     'search_rest'  '1986':8,9 '320k':10,11 'b6':12 'bill':1 'electronic':13 'for':3 'insane':4,5 'mor':18 'music':6,7 'pritchard':2 'set':15,17 'unsorted':14,16
                                    'search_combo'  '1986':21,22 '320k':23,24 '9':13C 'b6':25 'bill':14 'electronic':26 'for':9C,16 'froid':2A 'insane':7C,17,18 'mor':31 'multi':5B 'music':8C,19,20 'opera':4B 'people':10C 'pritchard':15 'set':28,30 'seul':3A 'steel':6B 'un':1A 'unsorted':27,29 'vol':11C,12C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['coldwave', 'post-punk', 'darkwave', 'french', 'gothic']
                                        'tag_date'  1986
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621695817.0881734  (2021-05-22 17:03:37)
                             'size'  9240459