======================== unified (from filesystem) ========================
                                         'bitrate'  '173.051'
                                        'duration'  '201'
                                          'artist'  'Janis Joplin'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Get It While You Can'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-2', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['blues', 'rock', 'female vocalists', '60s', 'classic rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-early-blues;rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '144.9'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'A50B080C'
'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '144.9'
'TCON' (Content type, a.k.a. Genre)                 ['rock-early-blues', 'rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Get It While You Can'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Janis Joplin'
'TRCK' (Track number/Position in set)               '7/12'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['blues', 'rock', 'female vocalists', '60s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.10 dB'
'TXXX:replaygain_track_peak'                        '0.434492'

========================== row from database ==========================
                                              'id'  1245931
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Janis Joplin/Greatest Hits/Janis Joplin - 07 Get it While you Can - 07.mp3
                                         'working'  None
                                         'bitrate'  173
                                    'duration_sec'  201
                                           'genre'  rock-early-blues;rock-cppex-progressive;set-pl-progspace
                                        'filesize'  4364207
                                           'mtime'  1620737832
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 07 you 07 rock early blues;rock cppex progressive;set progspace
                                      'tag_artist'  Janis Joplin
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Get It While You Can
                                             'bpm'  144.9
                                    'search_title'  'can':5 'get':1 'it':2 'while':3 'you':4
                                   'search_artist'  'janis':1 'joplin':2
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00singer':1 'blues':7,9 'cppex':11 'early':6 'eos':3 'progressive':12,14 'progspace':16 'rock':5,8,10 'set':13,15 'songwriter':2 'you':4
                                    'search_combo'  '00singer':10 'blues':16,18 'can':5A 'cppex':20 'early':15 'eos':12 'get':1A 'greatest':8C 'hits':9C 'it':2A 'janis':6B 'joplin':7B 'progressive':21,23 'progspace':25 'rock':14,17,19 'set':22,24 'songwriter':11 'while':3A 'you':4A,13
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['blues', 'rock', 'female vocalists', '60s', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737832.3368459  (2021-05-11 14:57:12)
                             'size'  4364207