======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '111'
                                          'artist'  'Shiina Ringo'
                                     'text_people'  ''
                                         'release'  'Demo tapes'
                                           'title'  'Rinne HIGHLIGHT'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-UNU-2', 'Q-LOCALNESS-2', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'j-rock', 'j-pop', 'female vocalists', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan-jrock-shibuyakei;loc-asia-japan;prerock-jb-jazz-unsorted'
                                             'bpm'  '84.632'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Demo tapes'
'TBPM' (BPM (beats per minute))                     '84.632'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan-jrock-shibuyakei',
 'loc-asia-japan',
 'prerock-jb-jazz-unsorted']
'TIT2' (Title/songname/content description)         'Rinne HIGHLIGHT'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shiina Ringo'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['japanese', 'j-rock', 'j-pop', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.54 dB'
'TXXX:replaygain_track_peak'                        '0.450549'

========================== row from database ==========================
                                              'id'  927086
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Shiina Ringo & Tokyo Jihen/- Demo tapes/Shiina Ringo - DEMO2/01 Rinne HIGHLIGHT.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  111
                                           'genre'  loc-asia-japan-jrock-shibuyakei;loc-asia-japan;prerock-jb-jazz-unsorted
                                        'filesize'  1783808
                                           'mtime'  1620540080
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia & Tokyo Jihen DEMO2 01 loc asia japan jrock shibuyakei;loc asia japan;prerock jb jazz unsorted
                                      'tag_artist'  Shiina Ringo
                                     'tag_release'  Demo tapes
                                       'tag_title'  Rinne HIGHLIGHT
                                             'bpm'  84.632
                                    'search_title'  'highlight':2 'rinne':1
                                   'search_artist'  'ringo':2 'shiina':1
                                  'search_release'  'demo':1 'tapes':2
                                     'search_rest'  '00asia':1 'asia':6 'demo2':4 'japan':7,13,15 'jazz':18 'jb':17 'jihen':3 'jrock':8 'loc':5,10,12 'prerock':14,16 'shibuyakei':9,11 'tokyo':2 'unsorted':19
                                    'search_combo'  '00asia':7 'asia':12 'demo':5C 'demo2':10 'highlight':2A 'japan':13,19,21 'jazz':24 'jb':23 'jihen':9 'jrock':14 'loc':11,16,18 'prerock':20,22 'ringo':4B 'rinne':1A 'shibuyakei':15,17 'shiina':3B 'tapes':6C 'tokyo':8 'unsorted':25
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['japanese', 'j-rock', 'j-pop', 'female vocalists', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540080.2567933  (2021-05-09 08:01:20)
                             'size'  1783808