======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '325'
                                          'artist'  'Don Henley'
                                     'text_people'  ''
                                         'release'  "I Can't Stand Still"
                                           'title'  'Dirty Laundry'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'soft rock', 'rock', 'singer songwriter', 'classic rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'rock-pop-soft;set-pl-billboard'
                                             'bpm'  '98.549'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "I Can't Stand Still"
'TBPM' (BPM (beats per minute))                     '98.549'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-soft', 'set-pl-billboard']
'TDOR' (Original release time)                      '1983'
'TDRC' (Recording time)                             '1983'
'TIT2' (Title/songname/content description)         'Dirty Laundry'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Henley'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['80s', 'soft rock', 'rock', 'singer songwriter', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.56 dB'
'TXXX:replaygain_track_peak'                        '0.579713'

========================== row from database ==========================
                                              'id'  1514359
                                            'path'  /data/Music/Bulk/00poprockelectronic/Don Henley/MBZ;#Don Henley;#I Can_t Stand Still;#06;#Dirty Laundry.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  325
                                           'genre'  rock-pop-soft;set-pl-billboard
                                        'filesize'  5211798
                                           'mtime'  1620736459
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Don Henley;#I Can_t Still;#06;#Dirty rock pop soft;set pl billboard
                                      'tag_artist'  Don Henley
                                     'tag_release'  I Can't Stand Still
                                       'tag_title'  Dirty Laundry
                                             'bpm'  98.549
                                    'search_title'  'dirty':1 'laundry':2
                                   'search_artist'  'don':1 'henley':2
                                  'search_release'  'can':2 'cant':4 'i':1 'stand':5 'still':6 't':3
                                     'search_rest'  '00poprockelectronic':1 '06':13,16 'billboard':25 'can':10 'dirty':14,17 'don':3,5 'henley':6,8 'i':7,9 'mbz':2,4 'pl':24 'pop':19 'rock':18 'set':21,23 'soft':20,22 'still':12,15 't':11
                                    'search_combo'  '00poprockelectronic':11 '06':23,26 'billboard':35 'can':6C,20 'cant':8C 'dirty':1A,24,27 'don':3B,13,15 'henley':4B,16,18 'i':5C,17,19 'laundry':2A 'mbz':12,14 'pl':34 'pop':29 'rock':28 'set':31,33 'soft':30,32 'stand':9C 'still':10C,22,25 't':7C,21
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'soft rock', 'rock', 'singer songwriter', 'classic rock']
                                        'tag_date'  1983
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620736459.0267649  (2021-05-11 14:34:19)
                             'size'  5211798