======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '492'
                                          'artist'  'The Stream'
                                     'text_people'  ''
                                         'release'  '1990s techno'
                                           'title'  'Hummel'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-GRIT-3', 'q-bass-3', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-MIXBEAT-4']")
                                      'lastfmtags'  "['metal', 'rock', 'progressive', 'prog', 'space']"
                                     'discogstags'  "['trance', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '145.0'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000209 000001FA 000018D4 0000147E 0006B6EE 0001FC15 00007725 00007515 '
 '0001FC15 000222F7')
'TALB' (Album/Movie/Show title)                     '1990s techno'
'TBPM' (BPM (beats per minute))                     '145.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Hummel'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Stream'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['trance', 'electronic']
'TXXX:lastfmtags'                                   ['metal', 'rock', 'progressive', 'prog', 'space']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.31 dB'
'TXXX:replaygain_track_peak'                        '0.731592'

========================== row from database ==========================
                                              'id'  1539630
                                            'path'  /data/Music/Bulk/00poprockelectronic/1990_S TECHNO__SOME OF MY VINYLS_/THE STREAM_HUMMEL.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  492
                                           'genre'  electronic-th-techno
                                        'filesize'  19682936
                                           'mtime'  1678649102
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1990_S TECHNO__SOME OF MY VINYLS_ THE STREAM_HUMMEL electronic th
                                      'tag_artist'  The Stream
                                     'tag_release'  1990s techno
                                       'tag_title'  Hummel
                                             'bpm'  145.0
                                    'search_title'  'hummel':1
                                   'search_artist'  'stream':2 'the':1
                                  'search_release'  '1990s':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 '1990':2 'electronic':12 'hummel':11 'my':7 'of':6 's':3 'some':5 'stream':10 'techno':4 'th':13 'the':9 'vinyls':8
                                    'search_combo'  '00poprockelectronic':6 '1990':7 '1990s':4C 'electronic':17 'hummel':1A,16 'my':12 'of':11 's':8 'some':10 'stream':3B,15 'techno':5C,9 'th':18 'the':2B,14 'vinyls':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-GRIT-3', 'q-bass-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', 'Q-MIXBEAT-4']
                                      'lastfmtags'  ['metal', 'rock', 'progressive', 'prog', 'space']
                                        'tag_date'  1995
                                     'discogstags'  ['trance', 'electronic']

============================== file details ==============================
                                           'mtime'  1678649102.2095897  (2023-03-12 20:25:02)
                             'size'  19682936