======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '213'
                                          'artist'  'The Welcome Wagon'
                                     'text_people'  ''
                                         'release'  'Welcome To The Welcome Wagon'
                                           'title'  'Up On A Mountain'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['indie', 'christian', 'alt country', 'alternative gospel', 'folk']"
                                     'discogstags'  "['rock', 'acoustic', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '116.120'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::XXX'                                         '0'
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunes_CDDB_IDs:eng'                          '12+32B2C248F13E62F9AE5AB953699C7003+11972049'
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'TALB' (Album/Movie/Show title)                     'Welcome To The Welcome Wagon'
'TBPM' (BPM (beats per minute))                     '116.120'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Up On A Mountain'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Welcome Wagon'
'TPUB' (Publisher)                                  'Asthmatic Kitty'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'acoustic', 'folk']
'TXXX:lastfmtags'                                   ['indie', 'christian', 'alt country', 'alternative gospel', 'folk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.49 dB'
'TXXX:replaygain_track_peak'                        '0.548882'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3O9Q169165601V48371D18390A2E12477256E6342FA8A871P4\x00')

========================== row from database ==========================
                                              'id'  1270524
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Welcome Wagon/Welcome To The Welcome Wagon/01 up on a mountain.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  213
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  8578954
                                           'mtime'  1637330516
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 01 up mountain ifs songwriter indie
                                      'tag_artist'  The Welcome Wagon
                                     'tag_release'  Welcome To The Welcome Wagon
                                       'tag_title'  Up On A Mountain
                                             'bpm'  116.12
                                    'search_title'  'a':3 'mountain':4 'on':2 'up':1
                                   'search_artist'  'the':1 'wagon':3 'welcome':2
                                  'search_release'  'the':3 'to':2 'wagon':4 'welcome':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':6 'indie':7 'mountain':5 'songwriter':2 'up':4
                                    'search_combo'  '00singer':12 'a':3A 'eos':14 'ifs':17 'indie':18 'mountain':4A,16 'on':2A 'songwriter':13 'the':5B,10C 'to':9C 'up':1A,15 'wagon':7B,11C 'welcome':6B,8C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'christian', 'alt country', 'alternative gospel', 'folk']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'acoustic', 'folk']

============================== file details ==============================
                                           'mtime'  1637330515.8733978  (2021-11-19 15:01:55)
                             'size'  8578954