======================== unified (from filesystem) ========================
                                         'bitrate'  '238.065'
                                        'duration'  '159'
                                          'artist'  "I'm From Barcelona"
                                     'text_people'  ''
                                         'release'  'Let Me Introduce My Friends'
                                           'title'  'Ola Kala'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'indie pop', 'indie', 'pop', 'happy']"
                                     'discogstags'  "['rock', 'folk rock', 'pop rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '145.476'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Let Me Introduce My Friends'
'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Ola Kala'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               "I'm From Barcelona"
'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', 'folk rock', 'pop rock', 'indie rock']
'TXXX:lastfmtags'                                   ['swedish', 'indie pop', 'indie', 'pop', 'happy']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.35 dB'
'TXXX:replaygain_track_peak'                        '0.324316'

========================== row from database ==========================
                                              'id'  1525300
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/I_m From Barcelona/Let Me Introduce My Friends/06 - ola kala.mp3
                                         'working'  None
                                         'bitrate'  238
                                    'duration_sec'  159
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  4750871
                                           'mtime'  1621786526
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos I_m 06 ola kala ifs songwriter indie unsorted
                                      'tag_artist'  I'm From Barcelona
                                     'tag_release'  Let Me Introduce My Friends
                                       'tag_title'  Ola Kala
                                             'bpm'  145.476
                                    'search_title'  'kala':2 'ola':1
                                   'search_artist'  'barcelona':5 'from':4 'i':1 'im':3 'm':2
                                  'search_release'  'friends':5 'introduce':3 'let':1 'me':2 'my':4
                                     'search_rest'  '00singer':1 'eos':3 'i':4 'ifs':8 'indie':9 'kala':7 'm':5 'ola':6 'songwriter':2 'unsorted':10
                                    'search_combo'  '00singer':13 'barcelona':7B 'eos':15 'friends':12C 'from':6B 'i':3B,16 'ifs':20 'im':5B 'indie':21 'introduce':10C 'kala':2A,19 'let':8C 'm':4B,17 'me':9C 'my':11C 'ola':1A,18 'songwriter':14 'unsorted':22
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'indie pop', 'indie', 'pop', 'happy']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'folk rock', 'pop rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621786526.016133  (2021-05-23 18:15:26)
                             'size'  4750871